(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Trouble Codes.
(e) Clear the stored DTCs.
(f) Drive the vehicle at more than 5 km/h (3.1 mph) for at least 60 seconds.
(g) Stop the vehicle.
(h) Check for DTCs See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Initial
Inspection and Diagnostic Overview/CAN Communication System/Diagnosis System.
Result:
HINT
If CAN communication system DTC U0100, U0129, U0131, U0142, or U0151 and another DTC are output at the same time,
perform troubleshooting for CAN communication system DTC U0100, U0129, U0131, U0142, or U0151 first.
B -- USE SIMULATION METHOD TO CHECK See: Accessories and Optional Equipment/Antitheft and Alarm
Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed With Troubleshooting
A -- GO TO CAN COMMUNICATION SYSTEM See: Powertrain Management/Computers and Control Systems/Information
Bus/Testing and Inspection/Initial Inspection and Diagnostic Overview/CAN Communication System/How to Proceed With
Troubleshooting
Up to 08/2009
POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: U0100,U0129,U1104: Lost Communication with ECM / PCM "A"
U1104 - Lost Communication with Driving Support ECU
DESCRIPTION
The power steering ECU receives signals from the ECM and the brake actuator assembly (skid control ECU) via the CAN communication system.
INSPECTION PROCEDURE
PROCEDURE
1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)
(a) Clear the DTCs See: Steering and Suspension/Steering/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.
(b) Check for DTCs See: Steering and Suspension/Steering/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.
OK:
DTC is not output.
NG -- GO TO CAN COMMUNICATION SYSTEM See: Powertrain Management/Computers and Control Systems/Information
Bus/Testing and Inspection/Initial Inspection and Diagnostic Overview/CAN Communication System/How to Proceed With
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