NETWORKING: CAN COMMUNICATION SYSTEM: DESCRIPTION (2008 Sequoia)

Last Modified: 11-29-2007		1.6 C
Service Category: Power Source/Network	Section: Networking
Model Year: 2008	Model: Sequoia	Doc ID: RM000002VTP002X
Title: NETWORKING: CAN COMMUNICATION SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

U1115

Lost Communication with Tilt and Telescopic Module

DESCRIPTION

DTC Code	DTC Detection Condition	Trouble Area
U1115	No communication from multiplex tilt and telescopic ECU	Power source circuit of multiplex tilt and telescopic ECU Multiplex tilt and telescopic ECU Multiplex tilt and telescopic ECU branch wire or connector

1.	DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

2.	CHECK FOR OPEN IN CAN BUS WIRE (MULTIPLEX TILT AND TELESCOPIC ECU BRANCH WIRE)

(a) Disconnect the H57 multiplex tilt and telescopic ECU connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
H57-5 (CANH) - H57-14 (CANL)	Ignition switch off	54 to 69 Ω

3.	CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BATTERY AND BODY GROUND)

(a) Reconnect the cable from the negative (-) battery terminal.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
H57-11 (GND) - Body ground	Always	Below 1 Ω

Standard Voltage: