Electronic Shift Module (Esm) - Electrical Diagnostics: Other Dodge Challenger III facelift

WHEN MONITORED

Continuously with the ignition on.

SET CONDITION

When monitored battery voltage drops below 6.0 volts.

POSSIBLE CAUSES

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to NAG1 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 242

Scheme 243

1. CHECK FOR ENGINE CHARGING SYSTEM DTCS With the scan tool, read Engine DTCs. Are there any Engine Charging System DTCs present? Yes Refer to «3.6L - DIAGNOSTIC CODE INDEX»(ref-489372) or «5.7L & 6.4L - DIAGNOSTIC CODE INDEX»(ref-489379) and perform the appropriate symptom . Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) . No Go To 2 .
2. CHECK (F902) IGNITION UNLOCK RUN START CIRCUIT Turn the ignition off to the lock position. Disconnect the Shift Lever Assembly harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F902) Ignition Unlock Run Start circuit in the Shift Lever Assembly harness connector. NOTE: 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 3 . No Repair the (F902) Ignition Unlock Run Start circuit for high resistance. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) .
3. CHECK (Z912) GROUND CIRCUIT Turn the ignition off to the lock position. Using a 12-volt test light connected to 12-volts, check the (Z912) Ground circuit in the Shift Lever Assembly harness connector. NOTE: 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 (Z912) Ground circuit for high resistance. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) .
4. SHIFT LEVER ASSEMBLY Reconnect all disconnected harness connectors. With the scan tool, erase Shift Lever DTC's. Start the engine and raise the engine speed to 2000 RPM for at least 10 seconds. With the scan tool, read Shift Lever DTC's. Did the DTC P0562-BATTERY VOLTAGE LOW DTC return? Yes Replace the Shift Lever Assembly per the Service Information Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) . No Test Complete.

Continuously with the ignition in the run position.

When the monitored battery voltage rises above 16.0 volts.

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to NAG1 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Continuously with the ignition in the run position.

If the Shift Lever Assembly controller detects an invalid calibration (checksum value).

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to NAG1 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Continuously with the ignition on.

The DTC will set if the high side driver detects a short to ground for 10 seconds.

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to NAG1 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 244

Scheme 245

Scheme 246

1. POWERTRAIN CONTROL MODULE (PCM) DTCS PRESENT With the scan tool, read PCM DTCs. Are there any brake DTCs present? Yes Refer to «3.6L - DIAGNOSTIC CODE INDEX»(ref-489372) or «5.7L & 6.4L - DIAGNOSTIC CODE INDEX»(ref-489379) and perform the appropriate diagnostic procedure . No Go To 2 .
2. WIN DTCS PRESENT With the scan tool, read WIN DTCs. Are there any WIN DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-489342-S13627600652012072600000) and perform the appropriate diagnostic procedure. No Go To 3 .
3. (K321) BTSI CONTROL CIRCUIT CHECK Turn the ignition off to the lock position. Disconnect the Shifter Lever Assembly harness connector. Ignition on, engine not running. With the scan tool under WIN, actuate the BTSI. NOTE: Check connectors - Clean/repair as necessary. Using a 12-volt test light connected to ground, check the (K321) BTSI Control circuit. Does the test light illuminate brightly while cycling on and off on all (K321) BTSI Control circuit? Yes Replace the Shifter Lever Assembly in accordance with the Service Information. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) . No Go To 4 .
4. (K321) BTSI CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off to the lock position. Disconnect the WIN harness connector. NOTE: Check connectors - Clean/repair as necessary. Measure the resistance between ground and the (K321) BTSI Control circuit at the WIN harness connector. Is the resistance below 5.0 Ohms? Yes Repair the (K321) BTSI Control circuit for a short to ground. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) . No Go To 5 .
5. (K321) BTSI CONTROL CIRCUIT OPEN Turn the ignition off to the lock position. NOTE: Check connectors - Clean/repair as necessary. Measure the resistance of the (K321) BTSI Control circuit between the Shifter Lever Assembly harness connector and the WIN harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (K321) BTSI Control circuit for an open. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) . No Go To 6 .
6. SHIFTER LEVER ASSEMBLY Using the schematics as a guide, inspect the wiring and connectors. Repair as necessary. Pay particular attention to all power and ground circuits. Repair Replace the Shifter Lever Assembly in accordance with the Service Information. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) .

Continuously with the ignition key on.

The DTC will set if the high side driver detects an open load for 10 seconds.

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to NAG1 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Scheme 247

1. POWERTRAIN CONTROL MODULE (PCM) DTCs PRESENT With the scan tool, read PCM DTCs. Are there any brake DTCs present? Yes Refer to «3.6L - DIAGNOSTIC CODE INDEX»(ref-489372) or «5.7L & 6.4L - DIAGNOSTIC CODE INDEX»(ref-489379) and perform the appropriate diagnostic procedure . No Go To 2 .
2. WIN DTCS PRESENT With the scan tool, read WIN DTCs. Are there any WIN DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-489342-S13627600652012072600000) and perform the appropriate diagnostic procedure. No Go To 3 .
3. (K321) BTSI CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off to the lock position. Disconnect the Shifter Lever Assembly harness connector. Disconnect the WIN harness connector. Turn the ignition on. NOTE: Check connectors - Clean/repair as necessary. Measure the voltage between ground and the (K321) BTSI Control circuit. Is there any voltage present? Yes Repair the (K321) BTSI Control circuit for a short to voltage. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) . No Go To 4 .
4. SHIFTER LEVER ASSEMBLY Using the schematics as a guide, inspect the wiring and connectors. Repair as necessary. Pay particular attention to all power and ground circuits. If there are no possible causes remaining, view repair. Repair Replace the Shifter Lever Assembly per the Service Information. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «NAG1 TRANSMISSION VERIFICATION TEST»(ref-489366-S27132934282012072600000) .

Continuously with the ignition in the run position.

When the expected switch state is not correctly sensed by the Shift Lever Assembly. If the upshift switch signal is detected as active in gear position other than drive.

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to NAG1 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

Continuously when the ignition is in the run position.

When the expected switch state is not correctly sensed by the Shifter Lever Assembly (SLA) Electronic Shift Module (ESM). If the Downshift switch signal is detected as active in gear position other than drive.

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to NAG1 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .