Circuit Description

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

The skid control ECU receives signals from the yaw rate and deceleration sensor via the CAN communication system.

The yaw rate sensor has a built-in deceleration sensor.

If there is trouble in the bus lines between the yaw rate and deceleration sensor and the CAN communication system, the DTC U0123/62 (yaw rate sensor communication trouble) and U0124/95 (deceleration sensor communication trouble) are output.

These DTCs are also output when the calibration has not been completed.

DIAGNOSTIC TROUBLE CODE TABLE

DTC No.	DTC Detection Condition	Trouble Area
C1210/36	When either of the following conditions is detected: When battery terminal was connected, shift lever was moved to non-P position within 15 seconds after ECU terminal IG1 became ON first. When the yaw rate sensor zero point recorded in ECU is deleted.	Yaw rate and deceleration sensor Zero point calibration undone Park/Neutral position switch (P) circuit
C1336/39	When either of the following conditions is detected: In test mode, shift lever is shifted to non-P position 2 seconds after ECU terminal IG1 is turned ON first. When deceleration sensor zero point recorded in ECU is deleted.	Yaw rate and deceleration sensor Zero point calibration undone Park/Neutral position switch (P) circuit

HINT:

If these codes (C1210/36 and/or C1336/39) are output, the following situations will occur:

The VSC TRAC warning light and the VSC OFF and slip indicator lights will come on.
Control of all systems other than ABS, EBD, and BA is canceled.