Justin's Toyota Service

Inspection Procedure Lth

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CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)

(a) Using the intelligent tester, check for any momentary interruption in the wire harness and connector corresponding to a DTC (See page BC-103).

DATA LIST: ABS/VSC/TRC

Item	Measurement Item / Range (Display)	Normal Condition
EFI COM	EFI communication open detection / OPN DET or NORMAL	OPN DET: Momentary interruption NORMAL: Normal
STEERING SEN	STEERING SEN Steering sensor open detection / OPN DET or NORMAL	OPN DET: Momentary interruption NORMAL: Normal
YAWRATE SEN	Yaw rate sensor open detection / OPN DET or NORMAL	OPN DET: Momentary interruption NORMAL: Normal

There are no momentary interruptions.

HINT:

Perform the above inspection before removing the sensor and connector.

Go to step 3

RECONFIRM DTC

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(a) Record the output DTCs (for ABS, VSC, and CAN communication). HINT:

If the CAN communication system DTC and the relevant sensor DTCs are output simultaneously, troubleshoot the relevant sensor DTCs (for ABS and VSC) after the CAN communication system returns to normal.

REPAIR CAN COMMUNICATION SYSTEM

REPAIR OR REPLACE HARNESS AND CONNECTOR

(a) Repair or replace the harness and connector.

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(b) Check for any momentary interruption between the skid control ECU and each sensor or ECM (See page BC-103).

(c) Check that there is no momentary interruption.

RECONFIRM DTC

(b) Start the engine.

(c) Drive the vehicle and turn the steering wheel to the right and left at a speed of 9 mph (15 km/h) or more.

(d) Check that no CAN communication system DTC is output.

(e) If ABS and VSC DTCs are output, record them.

Result

Result	Proceed to
DTC output for the CAN communication system	A
No DTC is output (ABS and VSC DTCs are output)	B
No DTC is output (No ABS and VSC DTCs are output)	• The CAN communication system must be normal when repairing each sensor DTC (for ABS and VSC). • These DTCs may be restored due to a malfunction in the connector terminal connection, etc. REPAIR CIRCUIT INDICATED BY OUTPUT CODE REPAIR CAN COMMUNICATION SYSTEM

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