Amplifier (Amp) - Electrical Diagnostics - Base: Other Dodge Dart PF

WHEN MONITORED

When the ignition is cycled on.

SET CONDITION

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

POSSIBLE CAUSES

Scheme 86

Scheme 87

Scheme 88

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1460-11-CHANNEL 1 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE LEFT INSTRUMENT PANEL (I/P) SPEAKER Make sure that one of the front doors are still open. With the scan tool, erase the DTCs. Turn the ignition off. Disconnect the Left I/P Speaker harness connector. Turn the ignition on. Turn the Radio. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1460-11-CHANNEL 1 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 3 No Replace the Left Instrument Panel Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
3. CHECK THE (X209) AMPLIFIED LEFT FRONT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance between ground and the (X209) Left I/P Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X209) Left I/P Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 4
4. CHECK THE (X299) AMPLIFIED LEFT FRONT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X299) Left I/P Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X299) Left I/P Speaker (-) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

Scheme 89

Scheme 90

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1460-12-CHANNEL 1 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK FOR VOLTAGE ON THE (X209) LEFT INSTRUMENT PANEL (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 the voltage between the (X209) Left I/P Speaker (+) circuit and ground. Is there any voltage present? Yes Repair the (X209) Left I/P Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK FOR VOLTAGE ON THE (X299) LEFT I/P SPEAKER (-) CIRCUIT Measure the voltage between the (X299) Left I/P Speaker (-) circuit and ground. Is there any voltage present? Yes Repair the (X299) Left I/P Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

Scheme 91

Scheme 92

Scheme 93

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1460-13-CHANNEL 1 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE LEFT FRONT I/P SPEAKER Turn the ignition off. Disconnect the Left I/P Speaker harness connector. Turn the ignition on. Turn the Radio on and set the volume to 25. Adjust the speakers to the front and center. 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 above 1.0 volt? Yes Replace the Amplified Left I/P Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X209) LEFT I/P SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance of the (X209) Left I/P Speaker (+) circuit between the Amplifier C1 harness connector and the Left I/P Speaker harness connector. Is the resistance below 2.0 Ohms? Yes Go To 4 No Repair the (X209) Left I/P Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
4. CHECK THE (X299) LEFT I/P SPEAKER (-) CIRCUIT FOR AN OPEN Measure the resistance of the (X299) Left I/P Speaker (-) circuit between the Amplifier C1 harness connector and the Left I/P Speaker harness connector. Is the resistance below 2.0 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Repair the (X299) Left I/P Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel, when the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

Scheme 94

Scheme 95

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. Using the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1464-00-CHANNEL 1 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE AMPLIFIED LEFT I/P SPEAKER Turn the ignition off. Disconnect the Left I/P Speaker harness connector. Measure the resistance of the speaker between the two terminals. NOTE: The graphic shows the connector face for reference only. Measure at the speaker terminals. Is the resistance of the speaker less than 1.0 Ohm? Yes Replace the Left I/P Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT, AND THE (X299) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Disconnect the Amplifier C1 harness connector. Measure the resistance between the (X209) Left I/P Speaker (+) circuit and the (X299) Left I/P Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X209) Left I/P Speaker (+) circuit for a short to the (X299) Left I/P Speaker (-) circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

Scheme 96

Scheme 97

Scheme 98

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. Using the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1465-11-CHANNEL 2 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE RIGHT INSTRUMENT PANEL (I/P) SPEAKER Make sure that one of the front doors are still open. Using the scan tool, erase the DTCs. Turn the ignition off. Disconnect the Right I/P Speaker harness connector. Turn the ignition on. Turn the Radio on. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1465-11-CHANNEL 2 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 3 No Replace the Right Instrument Panel Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
3. CHECK THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Amplifier C1 harness connector. Measure the resistance between ground and the (X208) Right I/P Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X208) Right I/P Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 4
4. 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 «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

Scheme 99

Scheme 100

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. Using the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1465-12-CHANNEL 2 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK FOR VOLTAGE ON THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C1 harness connector. Disconnect the Amplified Right I/P Speaker harness connector. Turn the ignition on. Measure for voltage between the (X208) Amplified Right I/P Speaker (+) circuit and ground. Is there any voltage present? Yes Repair the (X208) Amplified Right I/P Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 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 and ground. Is there any voltage present? Yes Repair the (X298) Amplified Right I/P Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

Scheme 101

Scheme 102

Scheme 103

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1465-13-CHANNEL 2 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE RIGHT FRONT I/P SPEAKER Turn the ignition off. Disconnect the Right I/P Speaker harness connector. Turn the ignition on. Turn the Radio on and turn the volume to 25. Adjust the speakers to the front and center. 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 1.0 volt? Yes Replace the Amplified Right I/P Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 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 2.5 Ohms? Yes Go To 4 No Repair the (X208) Amplified Right I/P Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
4. CHECK THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUIT FOR AN OPEN 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 2.5 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Repair the (X298) Amplified Right I/P Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel, when the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

Scheme 104

Scheme 105

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1469-00-CHANNEL 2 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE AMPLIFIED RIGHT I/P SPEAKER Turn the ignition off. Disconnect the Amplified Right I/P Speaker harness connector. Measure the resistance of the speaker between the two terminals. NOTE: The graphic shows the connector for reference only. Measure at the speaker terminals. Is the resistance of the speaker below 1.0 Ohm? Yes Replace the Amplified Right I/P Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT, AND THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER 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 «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

Scheme 106

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

Scheme 107

Scheme 108

Scheme 109

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. Using the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146A-11-CHANNEL 3 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE LEFT FRONT DOOR SPEAKER Make sure that one of the front doors are still open. Using the scan tool, erase the DTCs. Turn the ignition off. Disconnect the Left Front Door Speaker harness connector. Turn the ignition on. Turn the Radio on. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146A-11-CHANNEL 3 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 3 No Replace the Left Front Door Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
3. CHECK THE (X201) LEFT FRONT DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance between ground and the (X201) Left Front Door Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X201) Left Front Door Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 4
4. CHECK THE (X291) LEFT FRONT DOOR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X291) Left Front Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X291) Left Front Door Speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

B146A-12-CHANNEL 3 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

Scheme 110

Scheme 111

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146A-12-CHANNEL 3 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK FOR VOLTAGE ON THE (X201) LEFT FRONT DOOR SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C2 harness connector. Disconnect the Left Front Door Speaker harness connector. Turn the ignition on. Measure for voltage between the (X201) Left Front Door Speaker (+) circuit and ground. Is there any voltage present? Yes Repair the (X201) Left Front Door Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK FOR VOLTAGE ON THE (X291) LEFT FRONT DOOR SPEAKER (-) CIRCUIT Measure for voltage between the (X291) Left Front Door Speaker (-) circuit and ground. Is there any voltage present? Yes Repair the (X291) Left Front Door Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

B146A-13-CHANNEL 3 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

Scheme 112

Scheme 113

Scheme 114

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146A-13-CHANNEL 3 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE LEFT FRONT DOOR SPEAKER Turn the ignition off. Disconnect the Left Front Door Speaker harness connector. Turn the ignition on. Turn the Radio on and turn the volume to 25. Adjust the speakers to the front and center. With a voltmeter set to read in A/C voltage, measure the voltage of the Left Front Door Speaker circuits in the Left Front Door Speaker harness connector. Is the voltage present greater than 1.0 volt? Yes Replace the Left Front Door Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X201) LEFT FRONT DOOR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance of the (X201) Left Front Door Speaker (+) circuit between the Amplifier C2 harness connector and the Left Rear Speaker harness connector. Is the resistance below 2.5 Ohms? Yes Go To 4 No Repair the (X201) Left Front Door Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
4. CHECK THE (X291) LEFT FRONT DOOR SPEAKER (-) CIRCUIT FOR AN OPEN Measure the resistance of the (X291) Left Front Door Speaker (-) circuit between the Amplifier C2 harness connector and the Left Front Door Speaker harness connector. Is the resistance below 2.5 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Repair the (X291) Left Front Door Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel when the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

B146E-00-CHANNEL 3 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

Scheme 115

Scheme 116

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146E-00-CHANNEL 3 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE LEFT FRONT DOOR SPEAKER Turn the ignition off. Disconnect the Left Front Door Speaker harness connector. Measure the resistance of the speaker between the two terminals. NOTE: The graphic shows the connector for reference only. Measure at the speaker terminals. Is the resistance of the speaker below 1.0 Ohm? Yes Replace the Left Front Door Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X201) LEFT FRONT DOOR SPEAKER (+) CIRCUIT, AND THE (X291) LEFT FRONT DOOR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Disconnect the Amplifier C2 harness connector. Measure the resistance between the (X201) Left Front Door Speaker (+) circuit, and the (X291) Left Front Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X201) Left Front Door Speaker (+) circuit, and the (X291) Left Front Door Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

B146F-11-CHANNEL 4 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

Scheme 117

Scheme 118

Scheme 119

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146F-11-CHANNEL 4 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE RIGHT FRONT DOOR SPEAKER Make sure that one of the front doors are still open. With the scan tool, erase the DTCs. Turn the ignition off. Disconnect the Right Front Door Speaker harness connector. Turn the ignition on. Turn the Radio on. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146F-11-CHANNEL 4 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 3 No Replace the Right Front Door Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
3. CHECK THE (X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance between ground and the (X202) Right Front Door Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X202) Right Front Door Speaker (+) circuit for a short to ground. Perform BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 4
4. CHECK THE (X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X292) Right Front Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X292) Right Front Door Speaker (-) for a short to ground. Perform BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

B146F-12-CHANNEL 4 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

Scheme 120

Scheme 121

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146F-12-CHANNEL 4 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK FOR VOLTAGE ON THE (X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT Turn the ignition off. Disconnect the Amplifier C2 harness connector. Disconnect the Right Front Door Speaker harness connector. Turn the ignition on. Measure the voltage between the (X202) Right Front Door Speaker (+) circuit and ground. Is there any voltage present? Yes Repair the (X202) Right Front Door Speaker (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK FOR VOLTAGE ON THE (X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUIT Measure the voltage between the (X292) Right Front Door Speaker (-) circuit and ground. Is there any voltage present? Yes Repair the (X292) Right Front Door Speaker (-) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

B146F-13-CHANNEL 4 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

Scheme 122

Scheme 123

Scheme 124

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B146F-13-CHANNEL 4 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE RIGHT FRONT DOOR SPEAKER Turn the ignition off. Disconnect the Right Front Door Speaker harness connector. Turn the ignition on. Turn the Radio on and turn the volume to 25. Adjust the speakers to the front and center. With a voltmeter set to read in A/C voltage, measure the voltage of the Right Front Door Speaker circuits in the Right Front Door Speaker harness connector. Is the voltage present above 1.0 volt? Yes Replace the Right Front Door Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance of the (X202) Right Front Door Speaker (+) circuit between the Amplifier C2 harness connector and the Right Front Door Speaker harness connector. Is the resistance below 2.5 Ohms? Yes Go To 4 No Repair the (X202) Right Front Door Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
4. CHECK THE (X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUIT FOR AN OPEN Measure the resistance of the (X292) Right Front Door Speaker (-) circuit between the Amplifier C2 harness connector and the Right Front Door Speaker harness connector. Is the resistance below 2.5 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Repair the (X292) Right Front Door Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel when the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

Scheme 125

Scheme 126

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the front and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1473-00-CHANNEL 4 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE RIGHT FRONT DOOR SPEAKER Turn the ignition off. Disconnect the Right Front Door Speaker. Measure the resistance of the speaker between the two terminals. NOTE: The graphic shows the connector for reference only. Measure at the speaker terminals. Is the resistance of the speaker below 1.0 Ohm? Yes Replace the Right Front Door Speaker in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT, AND THE (X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Disconnect the Amplifier C2 harness connector. Measure the resistance between the (X202) Right Front Door Speaker (+) circuit, and the (X292) Right Front Door Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X202) Right Front Door Speaker (+) circuit, and the (X292) Right Front Door Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

Scheme 127

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. Using the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the rear and center. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1474-11 CHANNEL 5 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE LEFT REAR SPEAKER Make sure one of the front doors is still open. Using the scan tool, erase the DTCs. Turn the ignition off. Disconnect the Left Rear Speaker harness connector. Turn the ignition on. Turn the Radio on. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1474-11-CHANNEL 5 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 3 No Replace the Left Rear Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
3. CHECK THE (X303) LEFT REAR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance between ground and the (X303) Left Rear Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X303) Left Rear Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 4
4. CHECK THE (X393) LEFT REAR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X393) Left Rear Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X393) Left Rear Speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

Scheme 128

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. Using the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the rear and center. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1474-13-CHANNEL 5 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE LEFT REAR SPEAKER Turn the ignition off. Disconnect the Left Rear Speaker harness connector. Turn the ignition on. Turn the Radio on and turn the volume to 25. Adjust the speakers to the rear and center. With a Voltmeter set to read in A/C voltage, measure the voltage of the Left Rear Speaker circuits in the Left Rear Speaker harness connector. Is the voltage present greater than 1.0 Volt? Yes Replace the Left Rear Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X303) LEFT REAR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance of the (X303) Left Rear Speaker (+) circuit between the Amplifier C2 harness connector and the Left Rear Speaker harness connector. Is the resistance below 2.5 Ohms? Yes Go To 4 No Repair the (X303) Left Rear Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
4. CHECK THE (X393) LEFT REAR SPEAKER (-) CIRCUIT FOR AN OPEN Measure the resistance of the (X393) Left Rear Speaker (-) circuit between the Amplifier C2 harness connector and the Left Rear Speaker harness connector. Is the resistance below 2.5 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Repair the (X393) Left Rear Shelf Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel, when the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

Scheme 129

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. Using the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the rear and center. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1478-00-CHANNEL 5 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE LEFT REAR SPEAKER Turn the ignition off. Disconnect the Left Rear Speaker harness connector. Measure the resistance of the speaker between the two terminals. NOTE: The graphic shows the connector for reference only. Measure between the speaker terminals. Is the resistance of the speaker below 1.0 Ohm? Yes Replace the Left Rear Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X303) LEFT REAR SPEAKER (+) CIRCUIT, AND THE (X393) LEFT REAR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Disconnect the Amplifier C2 harness connector. Measure the resistance between the (X303) Left Rear Speaker (+) circuit, and the (X393) Left Rear Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X303) Left Rear Speaker (+) circuit, and the (X393) Left Rear Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

Scheme 130

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. Using the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the rear and center. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1479-11-CHANNEL 6 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE RIGHT REAR SPEAKER Make sure one of the front doors is still open. Using the scan tool, erase the DTCs. Turn the ignition off. Disconnect the Right Rear Speaker harness connector. Turn the ignition on. Turn the Radio on. Using the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1479-11-CHANNEL 6 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND? Yes Go To 3 No Replace the Right Rear Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
3. CHECK THE (X304) RIGHT REAR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance between ground and the (X304) Right Rear Speaker (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X304) Right Rear Speaker (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 4
4. CHECK THE (X394) RIGHT REAR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X394) Right Rear Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X394) Right Rear Speaker (-) for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

Scheme 131

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the rear and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B1479-13-CHANNEL 6 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE RIGHT REAR SPEAKER Turn the ignition off. Disconnect the Right Rear Speaker harness connector. Turn the ignition on. Turn the Radio on and turn the volume to 25. Adjust the speakers to the rear and center. With a voltmeter set to read in A/C voltage, measure the voltage of the Right Rear Speaker circuits in the Right Rear Speaker harness connector. Is the voltage present above 1.0 volt? Yes Replace the Right Rear Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X304) RIGHT REAR SPEAKER (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Amplifier C2 harness connector. Measure the resistance of the (X304) Right Rear Speaker (+) circuit between the Amplifier C2 harness connector and the Right Rear Speaker harness connector. Is the resistance below 2.5 Ohms? Yes Go To 4 No Repair the (X304) Right Rear Speaker (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
4. CHECK THE (X394) RIGHT REAR SPEAKER (-) CIRCUIT FOR AN OPEN Measure the resistance of the (X394) Right Rear Speaker (-) circuit between the Amplifier C2 harness connector and the Right Rear Speaker harness connector. Is the resistance below 2.5 Ohms? Yes Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Repair the (X394) Right Rear Speaker (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel, when the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

B147D-00-CHANNEL 6 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

Scheme 132

1. CHECK FOR AN INTERMITTENT CONDITION Turn the ignition on and open one of the front doors. NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs. With the scan tool, record and erase the Amplifier DTCs. Cycle the ignition switch from on to off, wait five seconds and then back to on. Turn the Radio on. Adjust the speakers to the rear and center. With the scan tool, read the active Amplifier DTCs. Does the scan tool display active: B147D-00-CHANNEL 6 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER? Yes Go To 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
2. CHECK THE OPERATION OF THE RIGHT REAR SPEAKER Turn the ignition off. Disconnect the Right Rear Speaker harness connector. Measure the resistance of the speaker between the two terminals. NOTE: The graphic shows the connector for reference only. Measure between the speaker terminals. Is the resistance of the speaker below 1.0 Ohm? Yes Replace the Right Rear Speaker in accordance with the Service Information. Refer to «SPEAKER, REMOVAL»(ref-646238-S17513211412014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 3
3. CHECK THE (X304) RIGHT REAR SPEAKER (+) CIRCUIT, AND THE (X394) RIGHT REAR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER Disconnect the Amplifier C2 harness connector. Measure the resistance between the (X304) Right Rear Speaker (+) circuit, and the (X394) Right Rear Speaker (-) circuit. Is the resistance below 10K Ohms? Yes Repair the (X304) Right Rear Speaker (+) circuit, and the (X394) Right Rear Speaker (-) circuit for a short together. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

B147E-11-CHANNEL 7 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

Scheme 133

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

B147E-12-CHANNEL 7 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

B147E-13-CHANNEL 7 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel When the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel When the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

With the ignition on.

If the Cabin Equalization Curve number message from the Radio is not the same as the Cabin Equalization Curve number stored in the Amplifier for 10 consecutive cycles, then the Radio will set this DTC.

B14B9-11-CHANNEL 9 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

B14B9-12-CHANNEL 9 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

B14B9-13-CHANNEL 9 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

Amplifier Bus wake-up. Amplifier reset with scan tool.

The Amplifier detects an open condition on the speaker output circuit.

B14B9-2B-CHANNEL 9 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel When the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

B14BE-11-CHANNEL 10 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

B14BE-12-CHANNEL 10 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

B14BE-13-CHANNEL 10 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

B14BE-2B-CHANNEL 10 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the speaker output circuit when the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

B14C8-11-CHANNEL 12 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a shorted to ground condition on the speaker output circuit when the ignition is cycled on.

B14C8-12-CHANNEL 12 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.

B14C8-13-CHANNEL 12 AUDIO SPEAKER OUTPUT - CIRCUIT OPEN

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects an open condition on the speaker output circuit when the ignition is cycled on.

B14C8-2B-CHANNEL 12 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

When the ignition is cycled on.

The Amplifier detects that the output circuits are shorted together when the ignition is cycled on.

When the ignition is cycled on.

This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel when the ignition is cycled on. The Amplifier shall set a DTC after a maturity rate of four to six seconds.

With the ignition on.

The Amplifier monitors the input voltage. This Diagnostic Trouble Code (DTC) is set when the input voltage is below 9.0 volts for greater than 15.0 seconds.

Scheme 134

Scheme 135

1. CHECK FOR POWERTRAIN CONTROL MODULE (PCM) DTCs NOTE: Make sure the battery is fully charged before proceeding. Using the scan tool, read the active PCM DTCs. Are there any battery or charging system DTCs present? Yes Refer to «DTC INDEX»(ref-646339) and perform the appropriate diagnostic procedure. No Go To 2
2. TEST FOR AN INTERMITTENT CONDITION Using the scan tool, record and erase the Amplifier DTCs. Start the engine. Allow the engine to idle for two minutes. Using the scan tool, read the Amplifier DTCs. Does the scan tool display: B2199-16-BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD? Yes Go To 3 No Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
3. CHECK THE (A931) FUSED B(+) CIRCUIT FOR AN OPEN OR EXCESSIVE RESISTANCE NOTE: Check the fuse for an open. If the fuse is open, make sure to check for a short to ground prior to replacing the fuse. Turn the ignition off. Disconnect the Amplifier C1 harness connector. Ignition on, engine not running. Using a 12-volt test light connected to ground, check the (A931) Fused B(+) circuit in the Amplifier C1 harness connector. The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Go To 4 No Repair the open or excessive resistance in the (A931) Fused B(+) circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
4. CHECK THE (Z911) GROUND CIRCUIT FOR AN OPEN OR EXCESSIVE RESISTANCE Using a 12-volt test light connected to 12-volts, check the (Z911) Ground circuit in the Amplifier C1 harness connector. The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Replace the Amplifier in accordance with the Service Information. Refer to «AMPLIFIER, REMOVAL»(ref-646238-S06891684492014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Repair the open or excessive resistance in the (Z911) Ground circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

With the ignition on.

The Amplifier monitors the input voltage. This Diagnostic Trouble Code (DTC) is set when the input voltage is above 16.0 volts for greater than 15.0 seconds.

B21DD-84-SYSTEM VOLTAGE - SIGNAL BELOW ALLOWABLE RANGE

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition on.

This Diagnostic Trouble Code (DTC) is set when the Amplifier receives a CAN message indicating the battery voltage is below 10.0 volts for greater than 15.0 seconds.

B21DD-85-SYSTEM VOLTAGE - SIGNAL ABOVE ALLOWABLE RANGE

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition on.

This Diagnostic Trouble Code (DTC) is set when the Amplifier receives a CAN message indicating the battery voltage is above 16.0 volts for greater than 15.0 seconds.

B221F-00-AMPLIFIER INTERNAL

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition on.

The Amplifier detects an internal failure.