Toyota Avalon V6-3.5L (2GR-FE) Manufacturer Code Page 837

Toyota Avalon V6-3.5L (2GR-FE) Manufacturer Code Page 837

WIRING DIAGRAM

Refer to DTC C1231/31 See: C Code Charts/C1231/Vehicle Stability Control System (from 12/2010).

INSPECTION PROCEDURE

NOTICE:

Before proceeding with the inspection, explain to the customer that the output DTC is related to temporary loss of the steering

angle zero point calibration, such as when the power voltage drops when the battery is removed, and confirm that this condition

occurred.

HINT

* When DTC U0073/94, U0123/62, U0124/95 and/or U0126/63 is output together with DTC C1439/66 and/or C1445/66, inspect

and repair the trouble areas indicated by DTC U0073/94, U0123/62, U0124/95 and/or U0126/63 first See: U Code

Charts/U0073/Vehicle Stability Control System (w/o VDIM) (from 12/2010).

* When the speed sensor or the yaw rate and acceleration sensor has trouble, DTCs for the steering angle sensor may be output

even when the steering angle sensor is normal. When DTCs for the speed sensor or yaw rate and acceleration sensor are

output together with other DTCs for the steering angle sensor, inspect and repair the speed sensor and yaw rate and

acceleration sensor first, and then inspect and repair the steering angle sensor.

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTCs See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Reading and

Clearing Diagnostic Trouble Codes/DTC Check / Clear (from 12/2010).

(b) Turn the ignition switch off.

(c) Turn the ignition switch to the ON position again and check that no CAN communication system DTCs are output See: Brakes and

Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.

(d) Drive the vehicle and turn the steering wheel to the right and left at a speed of 35 km/h (22 mph) and check that no speed sensor, yaw

rate and acceleration sensor and steering angle sensor DTCs are output See: Brakes and Traction Control/Antilock Brakes / Traction

Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/DTC Check / Clear (from 12/2010).

Result:

HINT

* If there is a malfunction in the speed sensor or the yaw rate and acceleration sensor, an abnormal value may be output

although the steering angle sensor is normal.

* If the speed sensor and the yaw rate and acceleration sensor DTCs are output simultaneously, repair the sensors and inspect

the steering angle sensor.

* If the same DTC C1439/66 and/or C1445/66 is not output again, the DTC may have been stored due to a temporary loss of the

steering angle zero calibration, such as when the power voltage drops.

D -- CHECK FOR INTERMITTENT PROBLEMS See: Brakes and Traction Control/Antilock Brakes / Traction Control