Up to 08/2009

SUSPENSION CONTROL: ACTIVE STABILIZER SUSPENSION SYSTEM: C1929,C192A-C192C,C1944: Front Magnetic Pole Sensor Initialization Incomplete


DESCRIPTION

If a malfunction occurs in the front active stabilizer control actuator's magnetic pole sensor (rotation position sensor), the motor short relay or the motor short relay's circuit, DTC C1929, C192A, C192B, C192C and/or C1944 are output.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CONNECTOR CONNECTION CONDITION

(a) Turn the power switch off.

(b) Check that the wire harness connectors between the front active stabilizer control ECU and front active stabilizer control actuator assembly are not loose or disconnected and that the wire harness is not damaged.

OK:

Connectors are not loose or disconnected. Wire harness is not damaged.

HINT
If the wire harness of the front active stabilizer control actuator assembly is damaged, replace the front active stabilizer control actuator assembly Removal.

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

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

(a) Turn the power switch off.

(b) Disconnect the g15 and g14 ECU connectors.

(c) Disconnect the g17 and g16 actuator connectors.

(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.

3. INTERCHANGE FRONT AND REAR ACTIVE STABILIZER CONTROL ECU

(a) Turn the power switch off.

(b) Interchange the front active stabilizer control ECU with the rear active stabilizer control ECU, and install them securely Removal.

NEXT -- Continue to next step.

4. CLEAR DTC

(a) Turn the power switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (IG) and the Techstream on.

(d) Clear the DTC Active Stabilizer Suspension System.

NEXT -- Continue to next step.

5. CHECK OPERATION OF FRONT ACTIVE STABILIZER CONTROL ECU

(a) Turn the power switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (READY) and wait 30 seconds or more. Then check for rear active stabilizer DTCs Active Stabilizer Suspension System.

OK:

DTC C1901, C1902, C1903, C1904 and C191C are not output.

HINT
Interchange the front and rear active stabilizer control ECUs and check for DTCs. After interchanging the ECUs, if a rear active stabilizer DTC is stored, it can be determined that the front active stabilizer control ECU is malfunctioning. If no DTC is stored, the front active stabilizer control actuator assembly is malfunctioning.

NG -- REPLACE ACTIVE STABILIZER CONTROL ECU ASSEMBLY Removal

OK -- REPLACE FRONT ACTIVE STABILIZER CONTROL ACTUATOR ASSEMBLY Removal