Acceleration Sensor Output Malfunction - Vehicle Stability Control System

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C1232/32: Stuck in Deceleration Sensor

DTC C1232/32 - Stuck in Deceleration Sensor

DTC C1234/34 - Yaw Rate Sensor Malfunction

DTC C1243/43 - Acceleration Sensor Stuck Malfunction

DTC C1244/44 - Open or Short in Deceleration Sensor Circuit

DTC C1245/45 - Acceleration Sensor Output Malfunction

DTC C1381/97 - Acceleration Sensor Power Supply Voltage Malfunction

DESCRIPTION

The yaw rate sensor and deceleration sensor signal is sent to the skid control ECU through the CAN communication system. When there is a malfunction in the communication, it will be detected by the diagnosis function.

WIRING DIAGRAM

INSPECTION PROCEDURE
HINT: When U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 are output accompanied with C1232/32, C1234/34, C1243/43, C1244/44, C1245/45 or C1381/97, inspect and repair the trouble areas indicated by U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 first.

PROCEDURE

1. CHECK YAW RATE AND DECELERATION SENSOR INSTALLATION
(a) Check that the yaw rate and deceleration sensor has been installed properly .
OK:
The sensor should be tightened to the specified torque.
The sensor should not be tilted.
NG -- INSTALL YAW RATE AND DECELERATION SENSOR CORRECTLY
OK -- Continue to next step.
2. INSPECT YAW RATE AND DECELERATION SENSOR (IG TERMINAL)
(a) Disconnect the yaw rate and deceleration sensor connector.
(b) Turn the ignition switch to the ON position.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (IG CIRCUIT)
OK -- Continue to next step.
3. INSPECT YAW RATE AND DECELERATION SENSOR (GND TERMINAL)
(a) Disconnect the yaw rate and deceleration sensor connector.

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

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)
OK -- REPLACE YAW RATE AND DECELERATION SENSOR