INSPECTION PROCEDURE
PROCEDURE
1. CHECK CAN COMMUNICATION SYSTEM
(a) Select "CAN Bus Check" from the "System Selection Menu" screen on the Techstream.
(b) Select "Communication Malfunction DTC" from the "CAN Bus Check" screen, and then select "Enter".
Result:
B -- GO TO CAN COMMUNICATION SYSTEM See: Diagnostic Trouble Code Descriptions/CAN Communication System
A -- CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION
) See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled
Systems/How To Proceed With Troubleshooting
Up to 08/2009
SUSPENSION CONTROL: AIR SUSPENSION SYSTEM: U0100-U0122,U0124,U0140: Lost Communication with ECM / PCM "A"
U0140 - Lost Communication with Main Body ECU
DESCRIPTION
The suspension control ECU inputs signals from the skid control ECU, yaw rate sensor, ECM, TCM and main body ECU via CAN communication.
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