C1942

SUSPENSION CONTROL: ACTIVE STABILIZER SUSPENSION SYSTEM: C1940: Front Yaw Rate Sensor

DTC C1940 - Front Yaw Rate Sensor

DTC C1941 - Front Acceleration Sensor

DTC C1942 - Malfunction in Signal from Steering Sensor to Front Active Stabilizer Control ECU

DTC C1943 - Front Vehicle Speed Signal

DTC C1946 - Malfunction in Signal from Steering Control ECU to Front Active Stabilizer Control ECU

DESCRIPTION

The active stabilizer suspension system uses CAN communication to gather information necessary for control functions. When a malfunction occurs in another system, DTCs C1940, C1941, C1942, C1943 and C1946 are stored.






INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC
(a) Check for DTC Active Stabilizer Suspension System.
OK:
DTCs other than C1940, C1941, C1942, C1943 and C1946 are not output
NG -- CHECK FLOWCHART OF EACH DTC
OK -- Continue to next step.

2. CHECK OPERATION OF FRONT ACTIVE STABILIZER CONTROL ECU
(a) Turn the engine switch off.
(b) Exchange the rear active stabilizer control ECU with the front active stabilizer control ECU.
(c) Connect Techstream to the DLC3.
(d) Turn the engine switch on (IG) and press the Techstream main switch ON.
(e) Clear the DTC Active Stabilizer Suspension System.
(f) Check for DTC.

Result





B -- CHECK INTERMITTENT PROBLEMS
A -- REPLACE FRONT ACTIVE STABILIZER CONTROL ECU