Initial Inspection and Diagnostic Overview

NOTE: The DATC module, FEM and REM must be reconfigured upon installation.

1. Verify the customer concern by operating the system.

Visual Inspection Chart:

2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the diagnostic tool does not power up, refer to the diagnostic tool manual.
5. Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with:
^ CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network (Information Bus).
^ NO RESP/NOT EQUIP for FEM, refer to Multifunction Electronic Control Module (General Module).
^ NO RESP/NOT EQUIP for REM, refer to Multifunction Electronic Control Module (General Module).
^ NO RESP/NOT EQUIP for DATC module, refer to Heating and Air Conditioning.
^ SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), clear the continuous DTCs and carry out self-test diagnostics for the FEM, REM and DATC module.

6. If DTCs related to the DATC module are retrieved, refer to Heating and Air Conditioning.
7. If the DTCs retrieved are related to the concern, go to the FEM Diagnostic Trouble Code (DTC) Index or REM Diagnostic Trouble Code (DTC) Index. Diagnostic Trouble Code Tests and Associated Procedures
8. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue the diagnostics. Symptom Related Diagnostic Procedures