For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Inspect the vehicle for radio rear seat audio control. Is the vehicle equipped with radio rear seat audio control? | -- | Go to Step 11 | Go to Step 2
2 |

1. Turn the ignition switch to the OFF position.
2. Disconnect the inoperative speaker.
3. Use a J 39200 in order to measure the resistance of the speaker.

Is the resistance within the specified range?

4-15ohms

Go to Step 3

Go to Step 9

3 |

1. Disconnect all of the radio connectors.
2. Use the J 39200 in order to measure the resistance at the inoperative speaker connector from terminal A to ground.

Does the resistance match the specified value?

Infinite

Go to Step 4

Go to Step 5

4 | Use the J 39200 in order to measure the resistance at the speaker connector from terminal B to ground. Is the resistance infinite? | -- | Go to Step 6 | Go to Step 10
5 | Repair a short to ground in the speaker return circuit. Has the repair been made? | -- | Go to Radio/Audio System Check | --
6 |

1. Reconnect the speaker.
2. Use the J 39200 in order to measure the resistance at the radio connector of the speaker FEED and RETURN circuit of the affected speaker.

Does the resistance measure between the specified values?

4-15ohms

Go to Step 7

Go to Step 8

7 | Service the radio. Refer to Radio Replacement . Has the repair been made? | -- | Go to Radio/Audio System Check | --
8 |

1. Inspect for faulty connections at the following locations:

• | The speaker

• | The in-line connectors

2. If the connections are OK, repair the faulty connection or the open in the speaker FEED or RETURN circuit.

Has the repair been made?

--

Go to Radio/Audio System Check

--

9 |

1. Test for a short to B+ in the speaker FEED or RETURN circuit.
2. If the circuit is OK, replace the speaker.

Has the repair been made?

--

Go to Radio/Audio System Check

--

10 | Repair the short to ground in the speaker FEED circuit. Has the repair been made? | -- | Go to Radio/Audio System Check | --
11 | Inspect the liftgate speakers. Are the liftgate speakers inoperative? | -- | Go to Step 12 | Go to Step 2
12 |

1. Turn the ignition switch to the OFF position.
2. Disconnect the inoperative speaker.
3. Use the J 39200 in order to measure the resistance of the speaker.

Is the resistance within the specified range?

4-15ohms

Go to Step 13

Go to Step 9

13 |

1. Disconnect the radio rear seat audio control connector.
2. Use the J 39200 in order to measure the resistance at the inoperative speaker harness connector from terminal A to ground.

Is the resistance infinite?

--

Go to Step 14

Go to Step 5

14 | Use the J 39200 in order to measure the resistance at the speaker connector from terminal B to ground. Is the resistance infinite? | -- | Go to Step 15 | Go to Step 10
15 |

1. Reconnect the speaker.
2. Disconnect the radio.
3. Use the J 39200 in order to measure the resistance at the radio rear seat audio control harness connector from the speaker RETURN IN circuit to ground.

Is the resistance infinite?

--

Go to Step 16

Go to Step 5

16 | Use the J 39200 in order to measure the resistance at the radio rear seat audio control connector from the speaker FEED IN circuit to ground. Is the resistance infinite? | -- | Go to Step 18 | Go to Step 10
17 | Service the radio rear seat audio controller. Refer to Rear Seat Audio Control Replacement . Has the repair been made? | -- | Go to Radio/Audio System Check | --
18 |

1. Reconnect the rear seat audio control connector to the rear seat audio controller.
2. Use the J 39200 in order to measure the resistance at the radio connector FEED and RETURN circuit of the affected speaker.

Is the resistance within the specified range?

4-15ohms

Go to Step 7

Go to Step 19

19 |

1. Disconnect the rear seat audio control connector.
2. Use a J 35616-A jumper kit in order to jump the affected rear speaker FEED and RETURN circuits to the radio at the rear seat audio control connector.
3. Use a J 39200 in order to measure the resistance at the radio connector FEED and RETURN circuits of the affected speaker.

Is the resistance within the specified range?

0-1ohms

Go to Step 20

Go to Step 8

20 | Use a J 39200 in order to measure the resistance at the rear seat audio control connector FEED and RETURN circuits of the affected speaker. Is the resistance within the specified range? | 4-15ohms | Go to Step 21 | Go to Step 8
21 |

1. Test CKT 906 (radio rear seat audio control enable) for a short to voltage.
2. If CKT 906 has no short to voltage, replace the rear seat audio controller. Refer to Rear Quarter Audio Control Replacement .

Has the repair been made?

--

System OK

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