Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Symptom Related Diagnostic Procedures

PROBLEM SYMPTOMS TABLE

1. COMMUNICATION STOP MODE TABLE

Problem Symptoms Table (Part 1):




a. Check that there is no open circuit in the CAN main bus line, short between the lines, or short to +B in the "CAN BUS LINE". Select "BUS CHECK" on the hand-held tester via the CAN VIM.
b. Check the communication stop mode of the ECUs not displayed among the following "ENGINE", "ECT", "BODY/GATEWAY", "TRANSLATE ECU".

NOTE:
- Systems using the CAN communication system differ according to optional settings. Check which ECUs are installed on the vehicle.
- Non-installed ECUs are not displayed. Be careful not to consider that they are in communication stop mode.

2. DTC COMBINATION TABLE

Problem Symptoms Table (Part 2):




a. Perform troubleshooting according to the combination of DTCs output.

HINT:
- ECM COMMUNICATION STOP MODE
- GATEWAY ECU COMMUNICATION STOP MODE
- TRANSLATE ECU COMMUNICATION STOP MODE