For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
Important: Allows For Both Inaccurate and Inoperative Readings.
1 | Did you perform the Instrument Cluster System Check? | -- | Go to Step 2 | Go to Instrument Cluster System Check
2 | Are both the speedometer and the odometer inaccurate? | -- | Go to Step 3 | Go to Step 4
3 | Using a scan tool, test for a DTC P0500. Does the scan tool register a DTC P0500? | -- | Go to DTC P0500 Vehicle Speed Sensor (VSS) Circuit | Go to Step 8
4 | Does the speedometer register any change in position? | -- | Go to Step 5 | Go to Step 12
5 |

1. Raise the drive wheels.
2. Support the lower control arms so that the drive axles are in a horizontal (straight) position.
3. Start and idle the engine.
4. Accelerate the car so the speedometer reads around 32 km/h (20 mph).
5. Using a J 39200 , measure the frequency of the output of the VSS cavity 3.

is the measured frequency within the specified range?

17-23 Hz

Go to Step 6

Go to Step 7

6 | Test the WHT/BLU wire using a J 39200 between the VSS connector cavity 3 and the instrument cluster assembly connector C2 cavity 10 for an open. Does the wire have an open? | -- | Go to Step 9 | Go to Step 8
7 |

1. Turn the vehicle OFF.
2. Replace the VSS. Refer to Vehicle Speed Sensor Replacement in Engine Controls.

Is the repair complete?

--

Go to Instrument Cluster System Check

--

8 | Inspect the instrument cluster assembly printed circuit for damage. Is the printed circuit damaged? | -- | Go to Step 11 | Go to Step 10
9 | Repair the open in the WHT/BLU wire between the VSS connector cavity 3 and the instrument cluster assembly connector C2 cavity 10. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Instrument Cluster System Check | --
10 | Replace the speedometer/odometer. Refer to Speedometer Replacement . Is the repair complete? | -- | Go to Instrument Cluster System Check | --
11 | Replace the instrument cluster printed circuit. Refer to Printed Instrument Cluster Circuit Replacement . Is the repair complete? | -- | Go to Instrument Cluster System Check | --
12 |

1. Turn the ignition switch to the ON position.
2. Using a test lamp, backprobe the VSS cavity 1 to ground.

Does the test lamp illuminate?

--

Go to Step 13

Go to Step 14

13 |

1. Turn the ignition switch to the OFF position.
2. Disconnect the VSS connector.
3. Using a J 39200 , test for continuity between the VSS connector cavity 2 to ground.

Is there continuity?

--

Go to Step 21

Go to Step 16

14 | Repair the open in the RED/BLU wire between the VSS cavity 1 and the SP258 C2. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Instrument Cluster System Check | --
15 | Replace the VSS. Refer to Vehicle Speed Sensor Replacement in Engine Controls. Is the repair complete? | -- | Go to Instrument Cluster System Check | --
16 | Are any other gauges inaccurate? | -- | Go to Step 18 | Go to Step 17
17 | Test the RED/WHT wire using a J 39200 between the VSS cavity 2 and the instrument cluster assembly connector C2 cavity 4 for an open. Does the wire have an open? | -- | Go to Step 20 | Go to Step 8
18 | Test the BRN wire using a J 39200 between the instrument cluster assembly connector C3 cavity 15 and ground for a short. Does the wire have a short? | -- | Go to Step 19 | Go to Step 8
19 | Repair the short in the BRN wire between the instrument cluster assembly connector C3 cavity 15 and ground. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Instrument Cluster System Check | --
20 | Repair the open in the RED/WHT wire between the VSS cavity 2 and the instrument cluster assembly connector C2 cavity 4. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Instrument Cluster System Check | --
21 | Test the WHT/BLU wire using a J 39200 between the VSS and the instrument cluster for an open. Does the wire have an open? | -- | Go to Step 22 | Go to Step 15
22 | Repair the open in the WHT/BLU wire. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Instrument Cluster System Check | --