External Audio/video Module - Electrical Diagnostics: Diagnosis Dodge Dart PF

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

DIAGNOSTIC TEST

EXTERNAL DISC MODULE

1. With the scan tool, erase the DTCs.
2. Replace the problem CD with a good, clean, unscratched, music CD.
3. Turn the radio CD player on.
4. With the scan tool, read the active DTCs. Does the Scan Tool display: B1421-00- AUDIO CD READ ERROR/INOPERABLE DISC? Yes Eject the inoperative CD and replace the External Disc Module (EDM) in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Test Complete. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

1. CHECK ENGINE DTCs With the scan tool, read active Powertrain Control Module (PCM) DTCs. Are there any Charging or Starting DTCs present? No Refer to «DTC INDEX»(ref-646339) and perform the appropriate diagnostic procedure. Yes Go To 2
2. TEST FOR INTERMITTENT CONDITION With the scan tool, record and erase the DTCs. Start the engine and run for two minutes. With the scan tool, read the active DTCs. Does the scan tool display; B210D-00-BATTERY VOLTAGE LOW? 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. (A937A) FUSED B(+) OR (Z911) GROUND CIRCUITS RESISTED Disconnect the External Disk Module harness connector. Connect a 12-volt test light between the (A937A) Fused B(+) circuit and the (Z911) Ground circuit in the door module 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 External Disc Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Test the Fused B(+) and the Ground circuit to determine which one has the high resistance. Repair the circuit for high resistance. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

1. CHECK ENGINE DTCs With the scan tool, read Powertrain Control Module (PCM) DTCs. Are there any Charging or Starting DTCs present? Yes Refer to «DTC INDEX»(ref-646339) and perform the appropriate diagnostic procedure. No Go To 2
2. TEST FOR INTERMITTENT CONDITION With the scan tool, record and erase the DTCs. Start the engine and run for two minutes. With the scan tool, read the active DTCs. Does the scan tool display; B210E-00-BATTERY VOLTAGE HIGH? Yes Replace the External Disc Module (EDM) in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . 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) .

RADIO

1. Move the vehicle to a shaded area and allow it to cool down.
2. Turn the ignition on when the vehicle interior is no warmer than the ambient temperature.
3. With the scan tool, erase the DTCs.
4. Turn the Radio and External Disc Module on and wait 90 seconds.
5. With the scan tool, read the active DTCs. Does the Scan Tool display: B2220-4B-CD CHANGER INTERNAL-OVER TEMPERATURE? Yes Replace the CD Player in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Test Complete. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTCs. Cycle the ignition from on to off three times. Turn the ignition on and wait 10 seconds. With the scan tool, read active DTCs. Does the scan tool display this DTC as active? 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 CAN IHS BUS CIRCUITS FOR A CONCERN WHILE DISCONNECTING THE CAN IHS BUS MODULES NOTE: When performing this step, turn the ignition off (wait one minute) before disconnecting any module. When the module is disconnected turn the ignition on. NOTE: The BCM contains pass-through circuits which are used to connect the Front and Rear CAN IHS Star Connectors. While monitoring the scan tool, disconnect each CAN IHS Bus (125K) module at the CAN IHS Star Connectors (except for the BCM and DLC), one at a time. Check for this DTC to become stored after disconnecting each CAN IHS Bus (125K) module the vehicle is equipped with. NOTE: If the DTC becomes stored when a particular module is disconnected, that module or related circuits are causing the DTC to set. With all the CAN IHS Bus modules disconnected at the Star Connectors (except for BCM and DLC), does the scan tool display this DTC as active? Yes Go To 3 No Diagnose the wiring and connectors between the CAN IHS Star Connector and the module that when disconnected caused this DTC to become stored for damage or shorted circuits. If OK, replace the module that when disconnected caused this DTC to become stored in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
3. CHECK THE (D158) CAN IHS BUS (125K) (-) CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the scan tool. Turn the ignition on. Measure the voltage between ground and the (D158) CAN IHS Bus (125K) (-) circuit. Is the voltage above 10.0 volts? Yes Repair the short to voltage in the (D158) CAN IHS Bus (125K) (-) circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Go To 4
4. CHECK THE (D157) CAN IHS BUS (125K) (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Measure the resistance between ground and the (D157) CAN IHS Bus (125K) (+) circuit. Is the resistance above 10k Ohms? Yes Go To 5 No Repair the short to ground in the (D157) CAN IHS Bus (125K) (+) circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .
5. CHECK FOR CORRECT BUS TERMINATION RESISTANCE Turn the ignition off. Disconnect and isolate the negative battery cable. Measure the resistance between the (D157) CAN IHS Bus (125K) (+) circuit and the (D158) CAN IHS Bus (125K) (-) circuit. Is the resistance between 53.5 and 67 Ohms? Yes Replace the Body Control Module (BCM) in accordance with the Service Information. Refer to «MODULE, BODY CONTROL, REMOVAL»(ref-646224-S08964387072014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No For a resistance measurement above 67 Ohms, an open or high resistance is present in the CAN IHS Bus (125K) (+) circuit or the CAN IHS Bus (125K) (-) circuit between the Star Connectors or one of the termination resistors internal to the Star Connector is damaged. Diagnose and repair as necessary. For a resistance measurement below 53.5 Ohms, a short between the CAN IHS Bus (125K) (+) circuit and the CAN IHS Bus (125K) (-) is present. Diagnose the short between the CAN IHS Bus (125K) (+) circuit and the CAN IHS Bus (125K) (-) circuit. Use the Star Connectors to isolate portions of the bus to assist in determining the location of the concern. Diagnose and repair as necessary. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

VERIFY DTC IS ACTIVE

Note. Make sure the battery is fully charged before proceeding.

1. Turn the ignition on.
2. With the scan tool, read the active DTCs. Does the scan tool display: U0019-00-CAN B BUS active? Yes For this code, refer to «DTC INDEX»(ref-646339) and perform the U0010-00-CAN INTERIOR BUS diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) and perform the Stored Lost Communication DTCs diagnostic procedure.

VERIFY DTC IS ACTIVE

Note. Make sure the battery is fully charged before proceeding.

1. Turn the ignition on.
2. With the scan tool, read the active DTCs. Does the scan tool display; U0020-00-CAN B BUS OFF PERFORMANCE as active? Yes For this code, refer to «DTC INDEX»(ref-646339) and perform the U0011-00-CAN INTERIOR BUS OFF PERFORMANCE diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) and perform the Stored Lost Communication DTCs diagnostic procedure.

VERIFY DTC IS ACTIVE

1. Turn the ignition on.
2. With the scan tool, read the active DTCs. Does the scan tool display; U0140-00-LOST COMMUNICATION WITH BODY CONTROL MODULE as active? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) and perform the NO RESPONSE FROM BCM (BODY CONTROL MODULE) diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) and perform the Stored Lost Communication DTCs diagnostic procedure.

VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

Note. Make sure the battery is fully charged before proceeding.

1. Turn the ignition on.
2. With the scan tool, read the active Radio DTCs. Is this DTC active? Yes Refer to «DTC INDEX»(ref-646339) and perform the U0184-00-Lost Communication With Radio diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) and perform the Stored Lost Communication DTCs diagnostic procedure.