METER / GAUGE SYSTEM, Diagnostic DTC:U0100,U0129,U0131,U0142,U0151 and U023A

DTC Code	DTC Name
U0100	Lost Communication with ECM / PCM "A"
U0129	Lost Communication with Brake System Control Module
U0131	Lost Communication with Power Steering Control Module
U0142	Lost Communication with Body Control Module "B"
U0151	Lost Communication with Restraints Control Module
U023A	Lost Communication with Front Camera Module

DESCRIPTION

The combination meter communicates with the ECM via the CAN line.


DTC Code	DTC Detection Condition	Trouble Area
U0100	IG voltage is 10.5 V or higher. No communication with the ECM continues for 2 seconds or more.	CAN communication system
U0129	IG voltage is 10.5 V or higher. No communication with the brake actuator assembly (skid control ECU) continues for 2 seconds or more.	CAN communication system
U0131	IG voltage is 10.5 V or higher. No communication with the power steering ECU assembly continues for 3 seconds or more.	CAN communication system
U0142	IG voltage is 10.5 V or higher. No communication with the main body ECU (instrument panel junction block assembly) continues for 7 seconds or more.	CAN communication system
U0151	IG voltage is 10.5 V or higher. No communication with the center airbag sensor assembly continues for 10 seconds or more.	CAN communication system
U023A	IG voltage is 10.5 V or higher. No communication with the pre-collision city sensor continues for 10 seconds or more.	CAN communication system

PROCEDURE

CHECK FOR DTC

Check for DTCs and note any codes that are output (Click here).
Clear the DTCs (Click here).

Recheck for DTCs (Click here).

Table 1. Result
Result	Proceed to
CAN communication system DTC is not output	A
CAN communication system DTC is output	B

Tip:

If CAN communication system DTC U0100 and another DTC are output at the same time, perform troubleshooting for CAN communication system DTC U0100 first.

USE SIMULATION METHOD TO CHECK

(Click here)

GO TO CAN COMMUNICATION SYSTEM

(Click here)