For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 |

1. Turn the headlamp/dimmer switch to the PARK position.
2. Determine if the following lights turn on:

• | All front side marker lamps

• | All rear side marker lamps

• | The taillamps

• | The license plate lamps

Did the lights turn on?

--

Go to Step 2

Go to Step 12

2 |

1. Turn the headlamp/dimmer switch to the OFF position.
2. Press the hazard switch to the ON position.

Determine if the following conditions occur:

• | The front park/turnlamps flash 80-90 times per minute.

• | The rear turnlamps flash 80-90 times per minute.

• | The left and right turn indicators flash continuously.

Did the conditions occur?

--

Go to Step 3

Go to Step 39

3 |

1. Press the hazard switch to the OFF position.
2. Turn the ignition switch to the ON position.
3. Move the turn switch to the left position.

Determine if the following conditions occur:

• | The left front park/turnlamps flash 80-90 times per minute.

• | The left rear turnlamps flash 80-90 times per minute.

• | The left turn indicator flashes continuously.

Did the conditions occur?

--

Go to Step 4

Go to Step 85

4 | Move the turn switch to the neutral position. Determine if the following components fail to light and fail to flash:

• | The left and right front turnlamps

• | The left and right rear turnlamps

• | The left and right turn indicators.

Did the lights fail to light and flash?

--

Go to Step 7

Go to Step 5

5 |

1. Place the turn switch in the neutral position.
2. Determine if the following components light without flashing:

• | The left front turnlamps

• | The left rear turnlamp

• | The left turn indicator

Do the components light without flashing?

--

Go to Step 86

Go to Step 6

6 |

1. Place the turn switch in the neutral position.
2. Determine if the following components light without flashing:

• | The right front turnlamps

• | The right rear turnlamp

• | The right turn indicator

Do the listed components light without flashing?

--

Go to Step 89

--

7 | Move the turn switch to the right position. Determine if the following conditions occur:

• | The right front park/turnlamps flash 80-90 times per minute.

• | The right rear turnlamps flash 80-90 times per minute.

• | The right turn indicator flashes continuously.

Did the conditions occur?

--

Go to Step 8

Go to Step 9

8 |

1. Move the turn switch to the neutral position.
2. Depress the brake pedal.

Determine if the following components light:

• | The left tail/stoplamp

• | The right tail/stoplamp

• | The center high-mounted stoplamp

Did the listed components light?

--

Go to Step 11

Go to Step 106

9 |

1. With the turn switch to the right position.
2. Determine if the following components are inoperative:

• | The right front turnlamp

• | The right rear turnlamp

• | The right turn indicator

Are all of the listed components inoperative?

--

Go to Step 10

--

10 | Replace the combination switch. Is the repair complete? | -- | Go to Step 1 | --
11 | Release the brake pedal. Do the stoplamps go out? | -- | System OK | Go to Step 111
12 | Determine if the following components are inoperative:

• | The parklamps

• | The side marker lamps

• | The taillamps

• | The license plate lamps

Are all of the listed components inoperative?

--

Go to Step 30

Go to Step 13

13 | Determine if the following components are inoperative:

• | The right front side marker lamp

• | The right front parklamp

Are all of the listed components inoperative?

--

Go to Step 54

Go to Step 14

14 | Is the right front parklamp the only inoperative component? | -- | Go to Step 55 | Go to Step 15
15 | Is the right front side marker lamp the only inoperative component? | -- | Go to Step 58 | Go to Step 16
16 | Determine if the following components are inoperative:

• | The left front side marker lamp

• | The left front parklamp

• | The right front side marker lamp

• | The rear side marker lamps

• | The taillamps

• | The license plate lamps

Are all of the listed components inoperative?

--

Go to Step 60

Go to Step 17

17 | Determine if the following components are inoperative:

• | The left front side marker lamp

• | The left front parklamp

Are all of the components inoperative?

--

Go to Step 61

Go to Step 18

18 | Is the left front parklamp the only inoperative component? | -- | Go to Step 62 | Go to Step 19
19 | Is the left front side marker lamp the only inoperative component? | -- | Go to Step 64 | Go to Step 20
20 | Determine if the following components are inoperative:

• | The front parklamps

• | The rear side marker taillamps

• | The license plate lamps

Are all of the listed components inoperative?

--

Go to Step 66

Go to Step 21

21 | Determine if the following components are inoperative:

• | The front parklamps

• | The left rear taillamp

Are all of the listed components inoperative?

--

Go to Step 66

Go to Step 22

22 | Is the left tail lamp the only inoperative component? | -- | Go to Step 67 | Go to Step 23
23 | Determine if the following components are inoperative:

• | The right taillamp

• | The left rear side marker lamp

• | The right rear side marker lamp

• | The left license plate lamp

• | The right license plate lamp

Are all of the listed components inoperative?

--

Go to Step 69

Go to Step 24

24 | Determine if the following components are inoperative:

• | The right taillamp

• | The right rear side marker lamp

• | The left license plate lamp

• | The right license plate lamp

Are all of the listed components inoperative?

--

Go to Step 70

Go to Step 25

25 | Is the left rear side marker lamp the only inoperative component? | -- | Go to Step 71 | Go to Step 26
26 | Is the right rear side marker lamp the only inoperative component? | -- | Go to Step 73 | Go to Step 27
27 | Is the right taillamp the only inoperative component? | -- | Go to Step 75 | Go to Step 28
28 | Determine if the following components are inoperative:

• | The left license plate lamp

• | The right license plate lamp

Are all of the listed components inoperative?

--

Go to Step 77

Go to Step 29

29 | Is either the left or right license plate lamp inoperative? | -- | Go to Step 78 | --
30 |

1. Remove the headlamp relay 2.
2. Connect a J 35616-200 unpowered test lamp from the headlamp relay 2 connector cavity 2 to ground.

Does the test lamp light?

--

Go to Step 31

Go to Step 134

31 | Connect a J 36169-A fused jumper from the headlamp relay connector cavity 2 to cavity 4. Do the parklamps light? | -- | Go to Step 32 | Go to Step 135
32 | Connect a test lamp from the headlamp relay 2 connector cavity 1 to ground. Does the test lamp light? | -- | Go to Step 33 | Go to Step 136
33 | Connect a J 35616-200 unpowered test lamp from the headlamp relay 2 connector cavity 1 to cavity 3. Does the test lamp light? | -- | Go to Step 34 | Go to Step 35
34 | Replace the headlamp relay 2. Refer to Headlamp Relay Replacement . Is the repair complete? | -- | Go to Step 1 | --
35 | Backprobe the combination switch connector using a J 35616-200 unpowered test lamp from cavity 13 to B+. Does the test lamp light? | -- | Go to Step 36 | Go to Step 37
36 | Test for an open in the RED/BLU wire between the combination switch and the headlamp relay 2. Is there an open? | -- | Go to Step 38 | Go to Step 10
37 | Repair the open in the BLK wire between the combination switch and G200. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
38 | Repair the open in RED/BLU wire between the combination switch and the headlamp relay 2. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
39 |

1. Place the headlamp/dimmer switch in the OFF position.
2. Determine if the following components remain lit:

• | All of the parklamps

• | The side marker lamps

• | The taillamps

• | The license plate lamps

Did the listed components remain lit with the headlamp/dimmer switch in the OFF position?

--

Go to Step 80

Go to Step 40

40 | Determine if the following components do not flash:

• | The front park/turnlamps

• | The rear turnlamps

• | The turn indicators

Do the listed components fail to flash?

--

Go to Step 91

Go to Step 41

41 | Determine if the following components are inoperative:

• | All of the left turnlamps

• | All of the left turn indicators

Are all of the listed components inoperative?

--

Go to Step 98

Go to Step 42

42 | Is the left front park/turnlamp the only inoperative component? | -- | Go to Step 99 | Go to Step 43
43 | Determine if the following components are inoperative:

• | The left rear turnlamp

• | The left turn indicator

Are the listed components inoperative?

--

Go to Step 101

Go to Step 44

44 | Is the left rear turnlamp the only inoperative component? | -- | Go to Step 102 | Go to Step 45
45 | Is the left turn indicator the only inoperative component? | -- | Go to Step 104 | Go to Step 46
46 | Determine if the following components are inoperative:

• | The left rear turnlamp

• | The right rear turnlamp

Are the listed components inoperative?

--

Go to Step 105

Go to Step 47

47 | Determine if the following components are inoperative:

• | All right turnlamps

• | All right turn indicators

Are the listed components inoperative?

--

Go to Step 125

Go to Step 48

48 | Is the right front park/turnlamp the only inoperative component? | -- | Go to Step 126 | Go to Step 49
49 | Determine if the following components are inoperative:

• | The right rear turn lamp

• | The right turn indicator

Are the listed components inoperative?

--

Go to Step 128

Go to Step 50

50 | Is the right rear turnlamp the only inoperative component? | -- | Go to Step 129 | Go to Step 51
51 | Is the right turn indicator the only inoperative component? | -- | Go to Step 131 | Go to Step 52
52 | Determine if the following components are inoperative:

• | The left turn indicator

• | The right turn indicator

Are the listed components inoperative?

--

Go to Step 132

Go to Step 53

53 | Determine if all of the following components light but do not flash:

• | All turnlamps

• | All turn indicators

Do the listed components light but not flash?

--

Go to Step 133

--

54 | Repair the open in the BLK wire between S103 and G104. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
55 | Test for an open in the RED/YEL wire between S231 and the right front park/turnlamp. Is there an open? | -- | Go to Step 56 | Go to Step 57
56 | Repair the open. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
57 | Repair the open in the BLK wire between the right front park/turnlamp and S103. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
58 | Test for an open in the RED/YEL wire between S231 and the right front side marker lamp. Is there an open? | -- | Go to Step 56 | Go to Step 59
59 | Repair the open in the BLK wire between the right front side marker lamp and S103. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
60 | Repair the open in the RED/YEL wire between S231 and S232. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
61 | Repair the open in the BLK wire between S120 and G100. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
62 | Test for an open in the RED/YEL wire between S232 and the left front park/turnlamp. Is there an open? | -- | Go to Step 56 | Go to Step 63
63 | Repair the open in the BLK wire between the left front park/turnlamp and S120. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
64 | Test for an open in the RED/YEL wire between S232 and the left front side marker lamp. Is there an open? | -- | Go to Step 56 | Go to Step 65
65 | Repair the open in the BLK wire between the left front side marker lamp and S120. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
66 | Repair the open in the RED/YEL wire between S231 and S283. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
67 | Test for an open in the RED/BLU wire between S283 and the left rear combination lamp. Is there an open? | -- | Go to Step 56 | Go to Step 68
68 | Repair the open in the BLK wire between the left rear combination lamp and S404. Is the repair complete? | -- | Go to Step 1 | --
69 | Repair the open in the RED/YEL wire between S283 and S408. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
70 | Repair the open in the RED/YEL wire between S408 and S416. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
71 | Test for an open in the RED/YEL wire between S408 and the left rear side marker lamp. Is there an open? | -- | Go to Step 56 | Go to Step 72
72 | Repair the open in the BLK wire between the left rear side marker lamp and S401. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
73 | Test for an open in the RED/YEL wire between S416 and the right rear side marker lamp. Is there an open? | -- | Go to Step 56 | Go to Step 74
74 | Repair the open in the BLK wire between the right rear side marker lamp and S403. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
75 | Test for an open in the RED/YEL wire or the RED/BLU wire between S416 and the right rear combination lamp. Is there an open? | -- | Go to Step 56 | Go to Step 76
76 | Repair the open in the BLK wire between the right rear combination lamp and S403. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
77 | Repair the open in the RED/YEL wire between S416 and S407. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
78 | Test for an open in the RED/YEL wire between S410 and the affected lamp. Is there an open? | -- | Go to Step 56 | Go to Step 79
79 | Repair the open in the BLK wire between the affected lamp and G300. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
80 | Remove the headlamp relay 2. Do all of the parking lamps remain lit? | -- | Go to Step 81 | Go to Step 82
81 | Repair the short to voltage in the RED/YEL wire. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
82 | Connect a J 35616-200 unpowered test lamp from the headlamp relay 2 connector cavity 3 to B+. Does the test lamp light? | -- | Go to Step 83 | Go to Step 34
83 | Test for a short to ground in the RED/BLU wire between the combination switch and the headlamp relay 2. Is there a short to ground? | -- | Go to Step 84 | Go to Step 10
84 | Repair the short to ground. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
85 | Determine if the following components are inoperative:

• | The left front turnlamp

• | The left turn indicator

Are the listed components inoperative?

--

Go to Step 10

--

86 | Disconnect the instrument panel cluster assembly connector C3. Do the turnlamps remain lit? | -- | Go to Step 87 | Go to Step 88
87 | Repair the short to voltage in the GRN/RED wire between the following components:

• | The combination switch

• | The left front park/turnlamp

• | The instrument panel cluster assembly

• | The left rear combination lamp

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Step 1

--

88 | Repair the IP cluster printed circuit. Is the repair complete? | -- | Go to Step 1 | --
89 | Disconnect the instrument panel cluster assembly connector C2. Do the turnlamps remain lit? | -- | Go to Step 88 | Go to Step 90
90 | Repair the short to voltage in the GRN/YEL wire between the following components:

• | The combination switch

• | The right front park/turnlamp

• | The instrument panel cluster assembly

• | The right rear combination lamp

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Step 1

--

91 | Backprobe the turn/hazard relay using a J 35616-200 unpowered test lamp from cavity 3 to ground. Does the test lamp light? | -- | Go to Step 92 | Go to Step 95
92 | Backprobe the turn/hazard relay using a test lamp from cavity 1 to B+. Does the test lamp light? | -- | Go to Step 93 | Go to Step 96
93 | Backprobe the turn/hazard relay using a test lamp from cavity 2 to ground. Does the test lamp flash within the specified range? | 80-90 times per minute | Go to Step 94 | Go to Step 97
94 | Test for an open in the GRN wire between the turn/hazard relay and the combination switch. Is there an open? | -- | Go to Step 56 | Go to Step 10
95 | Test for an open in the WHT/GRN wire between the combination switch and the fuse block 2 or the YEL/BLU or the YEL/WHT wire between the combination switch and the turn/hazard relay. Is there an open? | -- | Go to Step 56 | Go to Step 10
96 | Repair the open in the BLK wire between the turn/hazard relay and G201. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
97 | Replace the turn/hazard relay. Refer to Hazard and Turn Signal Flasher Replacement . Is the repair complete? | -- | Go to Step 1 | --
98 | Test for an open in the GRN/RED wire between the combination switch and S257. Is there an open? | -- | Go to Step 56 | Go to Step 10
99 | Test for an open in the GRN/RED wire between S257 and the left front park/turnlamp. Is there an open? | -- | Go to Step 56 | Go to Step 100
100 | Repair the open in the BLK wire between the left front park/turnlamp and G100. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
101 | Repair the open in the GRN/RED wire between S257 and S258. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
102 | Test for an open in the GRN/RED wire between S258 and the left rear combination lamp. Is there an open? | -- | Go to Step 56 | Go to Step 103
103 | Repair the open in the BLK wire between the left rear combination lamp and S404. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
104 | Test for an open in the GRN/RED wire between S258 and the instrument panel cluster assembly. Is there an open? | -- | Go to Step 56 | Go to Step 88
105 | Repair the open in the BLK wire between S404 and G300. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
106 | Determine if the following components are inoperative:

• | The left stoplamp

• | The right stoplamp

• | The center high-mounted stoplamp

Are the listed components inoperative?

--

Go to Step 107

Go to Step 113

107 | Backprobe the stoplamp switch connector with a J 35616-200 unpowered test lamp from cavity 1 to ground. Does the test lamp light? | -- | Go to Step 108 | Go to Step 109
108 | Test for an open in the GRN/WHT wire between the stoplamp switch and S411. Is there an open? | -- | Go to Step 56 | Go to Step 110
109 | Repair the open in the GRN wire between the fuse block 2 and the stoplamp switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
110 | Replace the stoplamp switch. Is the repair complete? | -- | Go to Step 1 | --
111 | Disconnect the stoplamp switch connector. Do the stoplamps remain lit? | -- | Go to Step 112 | Go to Step 110
112 | Repair the short to voltage in the GRN/WHT wire between the following components:

• | The stoplamp switch

• | The left rear combination lamp

• | The right rear combination lamp

• | The center high-mounted stoplamp

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Step 1

--

113 | Is the stoplamp the only inoperative component? | -- | Go to Step 114 | Go to Step 115
114 | Test for an open in the GRN/WHT wire between S411 and the left rear combination lamp. Is there an open? | -- | Go to Step 56 | Go to Step 116
115 | Determine if the following components are inoperative:

• | The right stoplamp

• | The center high-mounted stoplamp

Are the listed components inoperative?

--

Go to Step 117

Go to Step 118

116 | Repair the open in the BLK wire between the right rear combination lamp and G300. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
117 | Repair the open in the GRN/WHT wire between S411 and S417. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
118 | Are the left and right stoplamps are inoperative? | -- | Go to Step 105 | Go to Step 119
119 | Is the right stoplamp the only inoperative component? | -- | Go to Step 120 | Go to Step 121
120 | Test for an open in the GRN/WHT wire between S417 and the right rear combination lamp. Is there an open? | -- | Go to Step 56 | Go to Step 122
121 | Is the center high-mounted stoplamp the only inoperative component? | -- | Go to Step 123 | --
122 | Repair the open in the BLK wire between the right rear combination lamp and G300. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
123 | Test for an open in the GRN/WHT wire between S417 and the center high-mounted stoplamp. Is there an open? | -- | Go to Step 56 | Go to Step 124
124 | Repair the open in the BLK wire between the center high-mounted stoplamp and G400. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
125 | Test for an open in the GRN/YEL wire between the combination switch and S255. Is there an open? | -- | Go to Step 56 | Go to Step 10
126 | Test for an open in the GRN/YEL wire between S255 and the right front park/turnlamp. Is there an open? | -- | Go to Step 56 | Go to Step 127
127 | Repair the open in the BLK wire between the right front park/turnlamp and G104. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
128 | Repair the open in the GRN/YEL wire between S256 and S255. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
129 | Test for an open in the GRN/YEL wire between S256 and the right rear turnlamp. Is there an open? | -- | Go to Step 56 | Go to Step 130
130 | Repair the open in the BLK wire between the right rear turnlamp and G300. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
131 | Test for an open in the GRN/YEL wire between S256 and the instrument panel cluster assembly. Is there an open? | -- | Go to Step 56 | Go to Step 88
132 | Test for an open in the BLK wire between the instrument panel cluster assembly and G200. Is there an open? | -- | Go to Step 56 | Go to Step 88
133 | Remove the turn/hazard relay. Do the turnlamps go out? | -- | Go to Step 97 | Go to Step 137
134 | Repair the open in the WHT wire between the fuse block 2 and the headlamp relay 2. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
135 | Repair the open in the RED/YEL wire between the headlamp relay 2 and S231. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
136 | Repair the open in the WHT wire between the fuse block 2 and the headlamp relay 2. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 1 | --
137 | Disconnect the combination switch connector. Do the turnlamps go out? | -- | Go to Step 97 | Go to Step 138
138 | Disconnect the combination switch connector. Does the left turnlamp remain lit? | -- | Go to Step 86 | Go to Step 139
139 | Disconnect the combination switch connector. Does the right turnlamp remain lit? | -- | Go to Step 89 | --