C1944

SUSPENSION CONTROL: ACTIVE STABILIZER SUSPENSION SYSTEM: C1929: Front Magnetic Pole Sensor Initialization Incomplete

DTC C1929 - Front Magnetic Pole Sensor Initialization Incomplete

DTC C192A - Front Magnetic Pole Sensor Pattern

DTC C192B - Front Actuator Short Detect Relay

DTC C192C - Protection for Overload of Front Actuator

DTC C192E - Ratchet Angle of Front Actuator

DTC C1944 - Front Actuator Torque Decrease

DTC C1950 - Front Stabilizer Target Angle Not Attained (Test Mode DTC)

DESCRIPTION

The front active stabilizer control actuator consists of the rotation angle sensor, relay, motor and other parts. If a problem related to the rotation angle sensor or actuator drive function of the front active stabilizer control actuator or front active stabilizer control ECU occurs, the DTCs below are output. DTC C1950 is output during Test Mode.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CONNECTOR CONNECTION CONDITION
(a) Turn the engine switch off.
(b) Inspect the condition of the connector terminal.
OK:
Connector and terminal are not deformed or damaged. Terminal is not loose or corroded.
OK -- CHECK HARNESS AND CONNECTOR (FRONT ACTIVE STABILIZER CONTROL ECU - FRONT ACTIVE STABILIZER CONTROL ACTUATOR)
NG -- Continue to next step.

2. CHECK DTC
(a) Repair the connector or terminal.
(b) Check for DTC Active Stabilizer Suspension System.

Result





B -- END
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (FRONT ACTIVE STABILIZER CONTROL ECU - FRONT ACTIVE STABILIZER CONTROL ACTUATOR)




(a) Turn the engine switch off.
(b) Disconnect the z7 and z9 front active stabilizer control ECU connector.
(c) Disconnect the D front active stabilizer control actuator (rotation angle sensor) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK OPERATION OF FRONT ACTIVE STABILIZER CONTROL ECU
(a) Turn the engine switch off.
(b) Exchange the front active stabilizer control ECU with the rear 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





A -- REPLACE FRONT ACTIVE STABILIZER CONTROL ACTUATOR
B -- REPLACE FRONT ACTIVE STABILIZER CONTROL ECU