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DTC    U0100    Lost Communication with ECM / PCM "A"

DTC    U0129    Lost Communication with Skid Control ECU

DTC    U0131    Lost Communication with Power Steering Control Module

DTC    U0142    Lost Communication with Main Body ECU

DTC    U0151    Lost Communication with Airbag ECU

for Preparation Click here


DESCRIPTION

The combination meter assembly (No. 3 meter circuit plate) communicates with the ECM via the CAN communication system (CAN No. 1 Bus).

DTC No.
DTC Detection Condition
Trouble Area
U0100
When IG voltage is 9.5 V or more and the following conditions is detected:
  1. No communication with ECM continues for 2 seconds or more
  1. ECM
  2. CAN communication system
  3. Combination meter assembly (No. 3 meter circuit plate)
U0129
When IG voltage is 9.5 V or more and the following conditions is detected:
  1. No communication with skid control ECU continues for 3 seconds or more
  1. Skid control ECU
  2. CAN communication system
  3. Combination meter assembly (No. 3 meter circuit plate)
U0131
When IG voltage is 9.5 V or more and the following conditions is detected:
  1. No communication with power steering ECU continues for 3 seconds or more
  1. Power steering ECU
  2. CAN communication system
  3. Combination meter assembly (No. 3 meter circuit plate)
U0142
When IG voltage is 9.5 V or more and the following conditions is detected:
  1. No communication with main body ECU (instrument panel junction block assembly) continues for 3 seconds or more
  1. Main body ECU (Instrument panel junction block assembly)
  2. CAN communication system
  3. Combination meter assembly (No. 3 meter circuit plate)
U0151
When IG voltage is 9.5 V or more and the following conditions is detected:
  1. No communication with center airbag sensor assembly continues for 10 seconds or more
  1. Center airbag sensor assembly
  2. CAN communication system
  3. Combination meter assembly (No. 3 meter circuit plate)

INSPECTION PROCEDURE

1.CONFIRM DTC OUTPUT

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Body / Trouble Codes.

  1. Clear the stored DTCs.

  1. Drive the vehicle at more than 5 km/h (3.1 mph) for at least 60 seconds.

  1. Stop the vehicle.

  1. Check for DTCs (Click here).

    Result:
    Result
    		Proceed to
    DTC is output.
    		A
    DTC is not output.
    		B

    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 (Click here)
A

GO TO CAN COMMUNICATION SYSTEM (Click here)