Transfer Case

Diagnostic Routine J

Diagnostic Overview

U0140:00

Refer to Wiring Diagram Set 34 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions






Visual Inspection and Diagnostic Pre-checks

- Wiring, terminals or connectors

Pinpoint Test

NOTE: If new modules were installed prior to the DTC (Diagnostic Trouble Code) being set, the module configuration may be incorrectly set during the PMI (Programmable Module Installation) or the PMI (Programmable Module Installation) may not have been carried out.

1. VERIFY THE CUSTOMER CONCERN

1. Ignition ON.

2. Verify there is an observable symptom present.

Is an observable symptom present?






2. CHECK THE COMMUNICATION NETWORK

1. Ignition ON.

2. Using a scan tool, perform network test.

Does the BCM (Body Control Module) pass the network test?






3. RETRIEVE DTCs (Diagnostic Trouble Codes) FROM THE BCM (Body Control Module) SELF-TEST

1. Using a scan tool, perform BCM (Body Control Module) self-test to retrieve DTCs (Diagnostic Trouble Codes).

Is DTC (Diagnostic Trouble Code) U3003:16 or U3003:17 present?






4. RETRIEVE DTCs (Diagnostic Trouble Codes) FROM THE ATCM (All Terrain Control Module) SELF-TEST

1. Using a scan tool, perform ATCM (All Terrain Control Module) self-test.

Is DTC (Diagnostic Trouble Code) B11D9:16 or B11D9:17 present?






5. RECHECK THE ATCM (All Terrain Control Module) DTCs (Diagnostic Trouble Codes)

1. Using a scan tool, clear ATCM (All Terrain Control Module) DTCs (Diagnostic Trouble Codes).

2. Wait 10 seconds.

3. Repeat the ATCM (All Terrain Control Module) self-test.

Is DTC (Diagnostic Trouble Code) U0140:00 still present?






6. CHECK FOR DTC (Diagnostic Trouble Code) U0140:00 SET IN OTHER MODULES

1. Using a scan tool, clear all CMDTCs (Continuous Memory Diagnostic Trouble Codes).

2. Ignition OFF.

3. Ignition ON.

4. Wait 10 seconds.

5. Retrieve CMDTCs (Continuous Memory Diagnostic Trouble Codes) from all modules.

Is DTC (Diagnostic Trouble Code) U0140:00 set in more than one module?