Audio System (Amplifier) - Electrical Diagnostics: Other Dodge Dakota III рестайлинг

Monitor Conditions

1. When Monitored: With the ignition on.

Set Conditions

1. Set Condition: This DTC will set if a DC offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of 5 ±1 seconds.

Possible Causes

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a shorted to ground condition on the speaker output circuit.

Scheme 70

Scheme 71

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1461-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT LOW? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE (X300) AMPLIFIED SUBWOOFER 1 (+) CIRCUIT FOR A SHORT TO GROUND Disconnect the Amplifier C2 harness connector. Measure the resistance between ground and the (X300) Amplified Subwoofer 1 (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X300) Amplified Subwoofer (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X390) AMPLIFIED SUBWOOFER 1 (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X390) Amplified Subwoofer 1 (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X390) Amplified Subwoofer 1 (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 4
4. CHECK OPERATION OF THE AMPLIFIED SUBWOOFER 1 SPEAKER Turn the ignition off. Reconnect and reinstall the Subwoofer Speaker. Measure the resistance of the speaker circuit between the Amplifier C2 harness connector and ground. Is the resistance below 10K Ohms? Yes Replace the Subwoofer Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a short to battery condition on the output circuit.

Scheme 72

Scheme 73

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1462-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT HIGH? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FOR VOLTAGE ON THE (X300) AMPLIFIED SUBWOOFER 1 (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C2 harness connector. Disconnect the Amplified Subwoofer Speaker harness connector. Turn the ignition on. Measure for voltage on the (X300) Amplified Subwoofer 1 (+) circuit. Is the voltage above 10.0 volts? Yes Repair the (X300) Amplified Subwoofer 1 (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK FOR VOLTAGE ON THE (X390) AMPLIFIED SUBWOOFER 1 (-) CIRCUIT Measure for voltage on the (X390) Amplified Subwoofer 1 (-) circuit. Is the voltage above 10.0 volts? Yes Repair the (X390) Amplified Subwoofer 1 (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: Amplifier Bus wake-up. Amplifier reset with scan tool.

1. Set Condition: The Amplifier detects an open condition on the speaker output circuit.

Scheme 74

Scheme 75

Scheme 76

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on. Turn the radio on. With the scan tool, erase Amplifier DTCs. With the scan tool, reset the amplifier. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1463-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE SUBWOOFER SPEAKER Disconnect the Subwoofer Speaker harness connector. Turn the radio on and turn the volume to mid level. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Subwoofer Speaker circuits in the Amplified Subwoofer Speaker harness connector. Is the voltage present greater than 1 volt? Yes Replace the Amplified Subwoofer Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X300) AMPLIFIED SUBWOOFER 1 (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance of the (X300) Amplified Subwoofer 1 (+) circuit between the Amplifier C2 harness connector and the Amplified Subwoofer Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Go to step 4 No Repair the (X300) Amplified Subwoofer 1 (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CHECK THE (X390) AMPLIFIED SUBWOOFER 1 (-) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance of the (X390) Amplified Subwoofer 1 (-) circuit between the Amplifier C2 harness connector and the Amplified Subwoofer Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the (X390) Amplified Subwoofer 1 (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on. Radio volume at 25 or higher.

1. Set Condition: The amplifier detects that the output circuits are shorted together.

Scheme 77

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, erase Amplifier DTCs. Turn the radio on. Turn the volume level to 25. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1464-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE AMPLIFIED SUBWOOFER SPEAKER Disconnect the Amplified Subwoofer Speaker. Measure the resistance of the speaker between the two terminals. Is the resistance of the speaker less than 1 Ohm? Yes Replace the Amplified Subwoofer Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X300) AMPLIFIED SUBWOOFER 1 (+) CIRCUIT, AND THE (X390) AMPLIFIED SUBWOOFER 1 (-) CIRCUITS FOR A SHORT TOGETHER Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance between the (X300) Amplified Subwoofer 1 (+) circuit, and the (X390) Amplified Subwoofer 1 (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X300) Amplified Subwoofer 1 (+) circuit, and the (X390) Amplified Subwoofer 1 (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: This DTC will set if a DC offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of 5 ±1 seconds.

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a shorted to ground condition on the speaker output circuit.

Scheme 78

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Scheme 80

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance between ground and the (X301) Amplified Subwoofer (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X301) Amplified Subwoofer 2 (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X301) Amplified Subwoofer 2 (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X301) Amplified Subwoofer (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 4
4. CHECK OPERATION OF THE AMPLIFIED SUBWOOFER SPEAKER Turn the ignition off. Reconnect and reinstall the Subwoofer Speaker. Measure the resistance of the speaker circuit between the Amplifier C2 harness connector and ground. Is the resistance below 10K Ohms? Yes Replace the Subwoofer Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a short to battery condition on the output circuit.

Scheme 81

Scheme 82

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1467-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT HIGH? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FOR VOLTAGE ON THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C2 harness connector. Disconnect the Amplified Subwoofer Speaker harness connector. Turn the ignition on. Measure for voltage on the (X301) Amplified Subwoofer 2 (+) circuit. Is the voltage above 10.0 volts? Yes Repair the (X301) Amplified Subwoofer 2 (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK FOR VOLTAGE ON THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUIT Measure for voltage on the (X391) Amplified Subwoofer 2 (-) circuit. Is the voltage above 10.0 volts? Yes Repair the (X391) Amplified Subwoofer 2 (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: Amplifier Bus wake-up. Amplifier reset with scan tool.

1. Set Condition: The Amplifier detects an open condition on the speaker output circuit.

Scheme 83

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Scheme 85

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on. Turn the radio on. With the scan tool, erase Amplifier DTCs. With the scan tool, reset the amplifier. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1468-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE SUBWOOFER SPEAKER Disconnect the Subwoofer Speaker harness connector. Turn the radio on and turn the volume to mid level. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Subwoofer Speaker circuits in the Amplified Subwoofer Speaker harness connector. Is the voltage present greater than 1 volt? Yes Replace the Amplified Subwoofer Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance of the (X301) Amplified Subwoofer 2 (+) circuit between the Amplifier C2 harness connector and the Amplified Subwoofer Speaker harness connector. Is the resistance below 5.0 ohms? Yes Go to step 4 No Repair the (X301) Amplified Subwoofer 2 (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CHECK THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance of the (X391) Amplified Subwoofer 2 (-) circuit between the Amplifier C2 harness connector and the Amplified Subwoofer Speaker harness connector. Is the resistance below 5.0 ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the (X391) Amplified Subwoofer 2 (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on. Radio volume at 25 or higher.

1. Set Condition: The Amplifier detects that the output circuits are shorted together.

Scheme 86

Scheme 87

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, erase Amplifier DTCs. Turn the radio on. Turn the volume level to 25. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1469-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE AMPLIFIED SUBWOOFER SPEAKER Disconnect the Amplified Subwoofer Speaker. Measure the resistance of the speaker between the two terminals. Is the resistance of the speaker less than 1 ohm? Yes Replace the Amplified Subwoofer Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT, AND THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUITS FOR A SHORT TOGETHER Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance between the (X301) Amplified Subwoofer 2 (+) circuit, and the (X391) Amplified Subwoofer 2 (-) circuit. Is the resistance below 10K ohms? Yes Repair the (X301) Amplified Subwoofer 2 (+) circuit, and the (X391) Amplified Subwoofer 2 (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: This DTC will set if a DC offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of 5 ±1 second.

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a shorted to ground condition on the speaker output circuit.

Scheme 88

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Scheme 90

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B146B-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT LOW? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE (X201) AMPLIFIED LEFT FRONT DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Disconnect the Amplifier C1 harness connector. Measure the resistance between ground and the (X201) Amplified Left Front Door Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X201) Amplified Left Front Door Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X291) AMPLIFIED LEFT FRONT DOOR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X291) Amplified Left Front Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X291) Amplified Left Front Door Speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 4
4. CHECK OPERATION OF THE AMPLIFIED LEFT FRONT DOOR SPEAKER Turn the ignition off. Reconnect and reinstall the Left Front Door Speaker. Measure the resistance of the speaker circuit between the Amplifier C1 harness connector and ground. Is the resistance below 10K Ohms? Yes Replace the Left Front Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 91

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a short to battery condition on the output circuit.

Scheme 92

Scheme 93

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B146C-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT HIGH? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FOR VOLTAGE ON THE (X201) AMPLIFIED LEFT FRONT DOOR SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C1 harness connector. Disconnect the Amplified Left Front Door Speaker harness connector. Turn the ignition on. Measure for voltage on the (X201) Amplified Left Front Door Speaker (+) circuit. Is the voltage above 10.0 volts? Yes Repair the (X201) Amplified Left Front Door Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK FOR VOLTAGE ON THE (X291) AMPLIFIED LEFT FRONT DOOR SPEAKER (-) CIRCUIT Measure for voltage on the (X291) Amplified Left Front Door Speaker (-) circuit. Is the voltage above 10.0 volts? Yes Repair the (X291) Amplified Left Front Door Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 94

1. When Monitored: Amplifier Bus wake-up. Amplifier reset with scan tool.

1. Set Condition: The Amplifier detects an open condition on the speaker output circuit.

Scheme 95

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1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on. Turn the radio on. With the scan tool, erase Amplifier DTCs. With the scan tool, reset the amplifier. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B146D-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE LEFT REAR DOOR SPEAKER Disconnect the Left Rear Door Speaker harness connector. Turn the radio on and turn the volume to mid level. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Left Rear Door Speaker circuits in the Amplified Left Rear Door Speaker harness connector. Is the voltage present greater than 1 volt? Yes Replace the Amplified Left Rear Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X201) AMPLIFIED LEFT REAR DOOR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X201) Amplified Left Rear Door Speaker (+) circuit between the Amplifier C1 harness connector and the Amplified Left Rear Door Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Go to step 4 No Repair the (X201) Amplified Left Rear Door Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CHECK THE (X291) AMPLIFIED LEFT REAR DOOR SPEAKER (-) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X291) Amplified Left Rear Door Speaker (-) circuit between the Amplifier C1 harness connector and the Amplified Left Rear Door Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the (X291) Amplified Left Rear Door Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 98

1. When Monitored: With the ignition on. Radio volume at 25 or higher.

1. Set Condition: The Amplifier detects that the output circuits are shorted together.

Scheme 99

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, erase Amplifier DTCs. Turn the radio on. Turn the volume level to 25. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B146E-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE AMPLIFIED LEFT FRONT DOOR SPEAKER Disconnect the Amplified Left Front Door Speaker. Measure the resistance of the speaker between the two terminals. Is the resistance of the speaker less than 1 Ohm? Yes Replace the Amplified Left Front Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X201) AMPLIFIED LEFT FRONT DOOR SPEAKER (+) CIRCUIT, AND THE (X291) AMPLIFIED LEFT FRONT DOOR SPEAKER (-) S FOR A SHORT TOGETHER Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance between the (X201) Amplified Left Front Door Speaker (+) circuit, and the (X291) Amplified Left Front Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X201) Amplified Left Front Door Speaker (+) circuit, and the (X291) Amplified Left Front Door Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: This DTC will set if a DC offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of 5 ±1 seconds.

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a shorted to ground condition on the speaker output circuit.

Scheme 100

Scheme 101

Scheme 102

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1470-CHANNEL 4 AUDIO SPEAKER OUTPUT CIRCUIT LOW? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE (X202) AMPLIFIED RIGHT FRONT DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Disconnect the Amplifier C1 harness connector. Measure the resistance between ground and the (X202) Amplified Right Front Door Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X202) Amplified Right Front Door Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X292) AMPLIFIED RIGHT FRONT DOOR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X292) Amplified Right Front Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X292) Amplified Right Front Door Speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 4
4. CHECK OPERATION OF THE AMPLIFIED RIGHT FRONT DOOR SPEAKER Turn the ignition off. Reconnect and reinstall the Right Front Door Speaker. Measure the resistance of the speaker circuit between the Amplifier C1 harness connector and ground. Is the resistance below 10K Ohms? Yes Replace the Right Front Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 103

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a short to battery condition on the output circuit.

Scheme 104

Scheme 105

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1471-CHANNEL 4 AUDIO SPEAKER OUTPUT CIRCUIT HIGH? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FOR VOLTAGE ON THE (X202) AMPLIFIED RIGHT FRONT DOOR SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C1 harness connector. Disconnect the Amplified Right Front Door Speaker harness connector. Turn the ignition on. Measure for voltage on the (X202) Amplified Right Front Door Speaker (+) circuit. Is the voltage above 10.0 volts? Yes Repair the (X202) Amplified Right Front Door Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK FOR VOLTAGE ON THE (X292) AMPLIFIED RIGHT FRONT DOOR SPEAKER (-) CIRCUIT Measure for voltage on the (X292) Amplified Right Front Door Speaker (-) circuit. Is the voltage above 10.0 volts? Yes Repair the (X292) Amplified Right Front Door Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 106

1. When Monitored: Amplifier Bus wake-up. Amplifier reset with scan tool.

1. Set Condition: The Amplifier detects an open condition on the speaker output circuit.

Scheme 107

Scheme 108

Scheme 109

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on. Turn the radio on. With the scan tool, erase Amplifier DTCs. With the scan tool, reset the amplifier. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1472-CHANNEL 4 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE RIGHT FRONT DOOR SPEAKER Disconnect the Right Front Door Speaker harness connector. Turn the radio on and turn the volume to mid level. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Right Front Door Speaker circuits in the Amplified Right Front Door Speaker harness connector. Is the voltage present greater than 1 volt? Yes Replace the Amplified Right Front Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X202) AMPLIFIED RIGHT FRONT DOOR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X202) Amplified Right Front Door Speaker (+) circuit between the Amplifier C1 harness connector and the Amplified Right Front Door Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Go to step 4 No Repair the (X202) Amplified Right Front Door Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CHECK THE (X292) AMPLIFIED RIGHT FRONT DOOR SPEAKER (-) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X292) Amplified Right Front Door Speaker (-) circuit between the Amplifier C1 harness connector and the Amplified Right Front Door Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the (X292) Amplified Right Front Door Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 110

1. When Monitored: With the ignition on. Radio volume at 25 or higher.

1. Set Condition: The Amplifier detects that the output circuits are shorted together.

Scheme 111

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, erase Amplifier DTCs. Turn the radio on. Turn the volume level to 25. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1473-CHANNEL 4 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE AMPLIFIED RIGHT FRONT DOOR SPEAKER Disconnect the Amplified Right Front Door Speaker. Measure the resistance of the speaker between the two terminals. Is the resistance of the speaker less than 1 Ohm? Yes Replace the Amplified Right Front Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X202) AMPLIFIED RIGHT FRONT DOOR SPEAKER (+) CIRCUIT, AND THE (X292) AMPLIFIED RIGHT FRONT DOOR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance between the (X202) Amplified Right Front Door Speaker (+) circuit, and the (X292) Amplified Right Front Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X202) Amplified Right Front Door Speaker (+) circuit, and the (X292) Amplified Right Front Door Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: This DTC will set if a DC offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of 5 ±1 seconds.

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a shorted to ground condition on the speaker output circuit.

Scheme 112

Scheme 113

Scheme 114

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1475-CHANNEL 5 AUDIO SPEAKER OUTPUT CIRCUIT LOW? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE (X205) AMPLIFIED LEFT REAR DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Disconnect the Amplifier C1 harness connector. Measure the resistance between ground and the (X205) Amplified Left Rear Door Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X205) Amplified Left Rear Door Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X295) AMPLIFIED LEFT REAR DOOR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X295) Amplified Left Rear Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X295) Amplified Left Rear Door Speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 4
4. CHECK OPERATION OF THE AMPLIFIED LEFT REAR DOOR SPEAKER Turn the ignition off. Reconnect and reinstall the Left Rear Door Speaker. Measure the resistance of the speaker circuit between the Amplifier C1 harness connector and ground. Is the resistance below 10K Ohms? Yes Replace the Left Rear Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 115

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a short to battery condition on the output circuit.

Scheme 116

Scheme 117

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1476-CHANNEL 5 AUDIO SPEAKER OUTPUT CIRCUIT HIGH? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FOR VOLTAGE ON THE (X205) AMPLIFIED LEFT REAR DOOR SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C1 harness connector. Disconnect the Amplified Left Rear Door Speaker harness connector. Turn the ignition on. Measure for voltage on the (X205) Amplified Left Rear Door Speaker (+) circuit. Is the voltage above 10.0 volts? Yes Repair the (X205) Amplified Left Rear Door Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK FOR VOLTAGE ON THE (X295) AMPLIFIED LEFT REAR DOOR SPEAKER (-) CIRCUIT Measure for voltage on the (X295) Amplified Left Rear Door Speaker (-) circuit. Is the voltage above 10.0 volts? Yes Repair the (X295) Amplified Left Rear Door Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 118

1. When Monitored: Amplifier Bus wake-up. Amplifier reset with scan tool.

1. Set Condition: The Amplifier detects an open condition on the speaker output circuit.

Scheme 119

Scheme 120

Scheme 121

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on. Turn the radio on. With the scan tool, erase Amplifier DTCs. With the scan tool, reset the amplifier. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1477-CHANNEL 5 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE LEFT REAR DOOR SPEAKER Disconnect the Left Rear Door Speaker harness connector. Turn the radio on and turn the volume to mid level. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Left Rear Door Speaker circuits in the Amplified Left Rear Door Speaker harness connector. Is the voltage present greater than 1 volt? Yes Replace the Amplified Left I/P Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X205) AMPLIFIED LEFT REAR DOOR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X205) Amplified Left Rear Door Speaker (+) circuit between the Amplifier C1 harness connector and the Amplified Left Rear Door Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Go to step 4 No Repair the (X205) Amplified Left Rear Door Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CHECK THE (X295) AMPLIFIED LEFT REAR DOOR SPEAKER (-) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X295) Amplified Left Rear Door Speaker (-) circuit between the Amplifier C1 harness connector and the Amplified Left Rear Door Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the (X295) Amplified Left Rear Door Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 122

1. When Monitored: With the ignition on. Radio volume at 25 or higher.

1. Set Condition: The Amplifier detects that the output circuits are shorted together.

Scheme 123

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, erase Amplifier DTCs. Turn the radio on. Turn the volume level to 25. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1478-CHANNEL 5 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE AMPLIFIED LEFT REAR DOOR SPEAKER Disconnect the Amplified Left Rear Door Speaker. Measure the resistance of the speaker between the two terminals. Is the resistance of the speaker less than 1 Ohm? Yes Replace the Amplified Left Rear Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X205) AMPLIFIED LEFT REAR DOOR SPEAKER (+) CIRCUIT, AND THE (X295) AMPLIFIED LEFT REAR DOOR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance between the (X205) Amplified Left Rear Door Speaker (+) circuit, and the (X295) Amplified Left Rear Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X205) Amplified Left Rear Door Speaker (+) circuit, and the (X295) Amplified Left Rear Door Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: This DTC will set if a DC offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of 5 ±1 seconds.

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a shorted to ground condition on the speaker output circuit.

Scheme 124

Scheme 125

Scheme 126

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off and then on again. With the scan tool, read the Amplifier DTCs. Does the scan tool display active: B147A-CHANNEL 6 AUDIO SPEAKER OUTPUT CIRCUIT LOW? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE (X206) AMPLIFIED RIGHT REAR DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Disconnect the Amplifier C1 harness connector. Measure the resistance between ground and the (X206) Amplified Right Rear Door Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X206) Amplified Right Rear Door Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X296) AMPLIFIED RIGHT REAR DOOR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X296) Amplified Right Rear Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X296) Amplified Right Rear Door Speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 4
4. CHECK OPERATION OF THE AMPLIFIED RIGHT REAR DOOR SPEAKER Turn the ignition off. Reconnect and reinstall the Right Rear Door Speaker. Measure the resistance of the speaker circuit between the Amplifier C1 harness connector and ground. Is the resistance below 10K Ohms? Yes Replace the Right Rear Door Speaker in accordance with the service information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the service information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 127

1. When Monitored: With the ignition on.

1. Set Condition: The detects a short to battery condition on the output circuit.

Scheme 128

Scheme 129

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off and then on again. With the scan tool, read the Amplifier DTCs. Does the scan tool display active: B147B-CHANNEL 6 AUDIO SPEAKER OUTPUT CIRCUIT HIGH? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FOR VOLTAGE ON THE (X206) AMPLIFIED RIGHT REAR DOOR SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the C1 harness connector. Disconnect the Amplified Right Rear Door Speaker harness connector. Turn the ignition on. Measure for voltage on the (X206) Amplified Right Rear Door Speaker (+) circuit. Is the voltage above 10.0 volts? Yes Repair the (X206) Amplified Right Rear Door Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK FOR VOLTAGE ON THE (X296) AMPLIFIED RIGHT REAR SPEAKER (-) CIRCUIT Measure for voltage on the (X296) Amplified Right Rear Door Speaker (-) circuit. Is the voltage above 10.0 volts? Yes Repair the (X296) Amplified Right Rear Door Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the in accordance with the service information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 130

1. When Monitored: Amplifier Bus wake-up. Amplifier reset with scan tool.

1. Set Condition: The Amplifier detects an open condition on the speaker output circuit.

Scheme 131

Scheme 132

Scheme 133

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on. Turn the radio on. With the scan tool, erase Amplifier DTCs. With the scan tool, reset the amplifier. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B147C-CHANNEL 6 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE RIGHT REAR DOOR SPEAKER Disconnect the Right Rear Door Speaker harness connector. Turn the radio on and turn the volume to mid level. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Right Rear Door Speaker circuits in the Amplified Right Rear Door Speaker harness connector. Is the voltage present greater than 1 volt? Yes Replace the Amplified Right Rear Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X206) AMPLIFIED RIGHT REAR DOOR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X206) Amplified Right Rear Door Speaker (+) circuit between the Amplifier C1 harness connector and the Amplified Right Rear Door Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Go to step 4 No Repair the (X206) Amplified Right Rear Door Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CHECK THE (X296) AMPLIFIED RIGHT REAR DOOR SPEAKER (-) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X296) Amplified Right Rear Door Speaker (-) circuit between the Amplifier C1 harness connector and the Amplified Right Rear Door Speaker harness connector. Is the resistance below 5.0 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the (X296) Amplified Right Rear Door Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 134

1. When Monitored: With the ignition on. Radio volume at 25 or higher.

1. Set Condition: The Amplifier detects that the output circuits are shorted together.

Scheme 135

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, erase Amplifier DTCs. Turn the radio on. Turn the volume level to 25. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B147D-CHANNEL 6 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE AMPLIFIED RIGHT REAR DOOR SPEAKER Disconnect the Amplified Right Rear Door Speaker. Measure the resistance of the speaker between the two terminals. Is the resistance of the speaker less than 1 Ohm? Yes Replace the Amplified Right Rear Door Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X206) AMPLIFIED RIGHT REAR DOOR SPEAKER (+) CIRCUIT, AND THE (X296) AMPLIFIED RIGHT REAR DOOR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance between the (X206) Amplified Right Rear Door Speaker (+) circuit, and the (X296) Amplified Right Rear Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X206) Amplified Right Rear Door Speaker (+) circuit, and the (X296) Amplified Right Rear Door Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: This DTC will set if a DC offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of 5 ±1 sec.

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a shorted to ground condition on the speaker output circuit.

Scheme 136

Scheme 137

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B147F-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT LOW? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE (X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Disconnect the Amplifier C1 harness connector. Measure the resistance between ground and the (X209) Amplified Left I/P Speaker (+) circuit. Is the resistance below 10K ohms? Yes Repair the (X209) Amplified Left I/P Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X299) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X299) Amplified Left I/P Speaker (-) circuit. Is the resistance below 10K ohms? Yes Repair the (X299) Amplified Left I/P Speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 4
4. CHECK OPERATION OF THE AMPLIFIED LEFT I/P SPEAKER Turn the ignition off. Reconnect and reinstall the Left I/P Speaker. Measure the resistance of the speaker circuit between the Amplifier C1 harness connector and ground. Is the resistance below 10K ohms? Yes Replace the Amplified Left I/P Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a short to battery condition on the output circuit.

Scheme 138

Scheme 139

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1480-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT HIGH? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FOR VOLTAGE ON THE (X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C1 harness connector. Disconnect the Amplified Left I/P Speaker harness connector. Turn the ignition on. Measure for voltage on the (X209) Amplified Left I/P Speaker (+) circuit. Is the voltage above 10.0 volts? Yes Repair the (X209) Amplified Left I/P Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK FOR VOLTAGE ON THE (X299) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUIT Measure for voltage on the (X299) Amplified Left I/P Speaker (-) circuit. Is the voltage above 10.0 volts? Yes Repair the (X299) Amplified Left I/P Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: Amplifier Bus wake-up. Amplifier reset with scan tool.

1. Set Condition: The Amplifier detects an open condition on the speaker output circuit.

Scheme 140

Scheme 141

Scheme 142

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on. Turn the radio on. With the scan tool, erase Amplifier DTCs. With the scan tool, reset the amplifier. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1481-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE LEFT I/P SPEAKER Disconnect the Left I/P Speaker harness connector. Turn the radio on and turn the volume to mid level. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Left I/P Speaker circuits in the Amplified Left I/P Speaker harness connector. Is the voltage present greater than 1 volt? Yes Replace the Amplified Left I/P Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X209) Amplified Left I/P Speaker (+) circuit between the Amplifier C1 harness connector and the Amplified Left I/P Speaker harness connector. Is the resistance below 5.0 ohms? Yes Go to step 4 No Repair the (X209) Amplified Left I/P Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CHECK THE (X299) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X299) Amplified Left I/P Speaker (-) circuit between the Amplifier C1 harness connector and the Amplified Left I/P Speaker harness connector. Is the resistance below 5.0 ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the (X299) Amplified Left I/P Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on. Radio volume at 25 or higher.

1. Set Condition: The Amplifier detects that the output circuits are shorted together.

Scheme 143

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, erase Amplifier DTCs. Turn the radio on. Turn the volume level to 25. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1482-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE AMPLIFIED LEFT I/P SPEAKER Disconnect the Amplified Left I/P Speaker. Measure the resistance of the speaker between the two terminals. Is the resistance of the speaker less than 1 ohm? Yes Replace the Amplified Left I/P Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT, AND THE (X299) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance between the (X209) Amplified Left I/P Speaker (+) circuit, and the (X299) Amplified Left I/P Speaker (-) circuit. Is the resistance below 10K ohms? Yes Repair the (X209) Amplified Left I/P Speaker (+) circuit, and the (X299) Amplified Left I/P Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: This DTC will set if a DC offset occurs on the output channel, the Amplifier sets a DTC after a maturity rate of 5 ±1 seconds.

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a shorted to ground condition on the speaker output circuit.

Scheme 144

Scheme 145

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off and then on again. With the scan tool, read the Amplifier DTCs. Does the scan tool display active: B1484-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT LOW? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Disconnect the Amplifier C1 electrical connector. Measure the resistance between ground and the (X208) amplified right I/P speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X208) amplified right I/P speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X298) amplified right I/P speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X298) amplified right I/P speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 4
4. CHECK OPERATION OF THE AMPLIFIED RIGHT I/P SPEAKER Turn the ignition off. Reconnect and reinstall the right I/P speaker. Measure the resistance of the speaker circuit between the Amplifier C1 electrical connector and ground. Is the resistance below 10K Ohms? Yes Replace the right I/P speaker in accordance with the service information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the service information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a short to battery condition on the output circuit.

Scheme 146

Scheme 147

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off and then on again. Using the scan tool, read the Amplifier DTCs. Does the scan tool display active: B1485-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT HIGH? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FOR VOLTAGE ON THE (X208) AMPLIFIED RIGHT REAR DOOR SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C1 electrical connector. Disconnect the amplified right I/P speaker electrical connector. Turn the ignition on. Measure for voltage on the (X208) amplified right I/P speaker (+) circuit. Is the voltage above 10.0 Volts? Yes Repair the (X208) amplified right I/P speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK FOR VOLTAGE ON THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUIT Measure for voltage on the (X298) amplified right I/P speaker (-) circuit. Is the voltage above 10.0 volts? Yes Repair the (X298) amplified right I/P speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Replace the Amplifier in accordance with the service information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: Amplifier Bus wake-up. Amplifier reset with scan tool.

1. Set Condition: The Amplifier detects an open condition on the speaker output circuit.

Scheme 148

Scheme 149

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on. Turn the radio on. With the scan tool, erase Amplifier DTCs. With the scan tool, reset the amplifier. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1486-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK THE OPERATION OF THE RIGHT I/P SPEAKER Disconnect the Right Rear Door Speaker harness connector. Turn the radio on and turn the volume to mid level. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Right I/P Speaker circuits in the Amplified Right I/P Speaker harness connector. Is the voltage present greater than 1 volt? Yes Replace the Amplified Right I/P Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Go to step 3
3. CHECK THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X208) Amplified Right I/P Speaker (+) circuit between the Amplifier C1 harness connector and the Amplified Right I/P Speaker harness connector. Is the resistance below 5.0 ohms Yes Go to step 4 No Repair the (X208) Amplified Right I/P Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CHECK THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X298) Amplified Right I/P Speaker (-) circuit between the Amplifier C1 harness connector and the Amplified Right I/P Speaker harness connector. Is the resistance below 5.0 ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the (X298) Amplified Right I/P Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

1. When Monitored: With the ignition on. Radio volume at 25 or higher.

1. Set Condition: The Amplifier detects that the output circuits are shorted together.

Scheme 150

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on, then off, and then on again. With the scan tool, erase Amplifier DTCs. Turn the radio on. Turn the volume level to 25. With the scan tool, read Amplifier DTCs. Does the scan tool display active: B1487-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000)
2. CHECK THE OPERATION OF THE AMPLIFIED RIGHT I/P SPEAKER Disconnect the Amplified Right I/P Speaker. Measure the resistance of the speaker between the two terminals. Is the resistance of the speaker less than 1 ohm? Yes Replace the Amplified Right I/P Speaker in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) No Go to step 3
3. CHECK THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT, AND THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance between the (X208) Amplified Right I/P Speaker (+) circuit, and the (X298) Amplified Right I/P Speaker (-) circuit. Is the resistance below 10K ohms? Yes Repair the (X208) Amplified Right I/P Speaker (+) circuit, and the (X298) Amplified Right I/P Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) No Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000)

1. When Monitored: With the ignition on.

1. Set Condition: If the cabin EQ message is incompatible with the EQ's stored in the amplifier for 10 consecutive cycles, then the amplifier will set this DTC.

1. When Monitored: With the ignition on.

1. Set Condition: If the module detects that the battery voltage is less than 9.0 volts for one second.

1. When Monitored: With the ignition on.

1. Set Condition: If the module detects that the battery voltage is greater 16.5 volts for 1 second.

1. When Monitored: With the ignition on.

1. Set Condition: The Amplifier detects a software checksum test failure.

1. When Monitored: Continuously.

1. Set Condition: Whenever the Can B Bus (+) or B Bus (-) circuit is open, shorted to voltage or shorted to ground, this code will set.

Scheme 151

Scheme 152

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase the DTCs Cycle the ignition from on to off three times. Turn the ignition on. With the scan tool, read the DTCs. Does the scan tool display U0019-CAN B BUS CIRCUIT? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FRONT CONTROL MODULE DTCs With the scan tool, read the Front Control Module (FCM) DTCs Does the scan tool display any CAN B BUS DTCs - ACTIVE? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Diagnosis and Testing»(ref-352654-S29617915202010010600000) . No Go to step 3
3. CAN B BUS (+) CIRCUIT OPEN Turn the ignition off. Disconnect the Amplifier harness connector. Disconnect the Front Control Module C1 harness connector. Measure the resistance of the (D55) Can B Bus (+) circuit between the Front Control Module C1 harness connector and the Amplifier harness connector. Is the resistance below 2.0 Ohms? Yes Go to step 4 Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the Can B Bus (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CAN B BUS (-) CIRCUIT OPEN Measure the resistance of the (D54) Can B Bus (-) circuit between the Front Control Module C1 harness connector and the Amplifier harness connector. Is the resistance below 2.0 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the Can B Bus (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .

Scheme 153

1. When Monitored: Continuously.

1. Set Condition: Whenever the Can B Bus (+) or B Bus (-) circuit is open, shorted to voltage or shorted to ground, this code will set.

Scheme 154

Scheme 155

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase the DTCs Cycle the ignition from on to off three times. Turn the ignition on. With the scan tool, read the DTCs. Does the scan tool display U0020-CAN B BUS OFF PERFORMANCE? Yes Go to step 2 No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
2. CHECK FRONT CONTROL MODULE DTCs With the scan tool, read Front Control Module (FCM) DTCs Does the scan tool display any CAN B BUS DTCs - ACTIVE? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Diagnosis and Testing»(ref-352654-S29617915202010010600000) . No Go to step 3
3. CAN B BUS (+) CIRCUIT OPEN Turn the ignition off. Disconnect the Amplifier harness connector. Disconnect the Front Control Module C1 harness connector. Measure the resistance of the (D55) Can B Bus (+) circuit between the Front Control Module C1 harness connector and the Amplifier harness connector. Is the resistance below 2.0 Ohms? Yes Go to step 4 Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the Can B Bus (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .
4. CAN B BUS (-) CIRCUIT OPEN Measure the resistance of the (D54) Can B Bus (-) circuit between the Front Control Module C1 harness connector and the Amplifier harness connector. Is the resistance below 2.0 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) . No Repair the Can B Bus (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure»(ref-352654-S37713291802010010600000) .