Up to 08/2009

SUSPENSION CONTROL: ACTIVE STABILIZER SUSPENSION SYSTEM: C1959: IG Power Supply Voltage in Front ECU
C1959 - IG Power Supply Voltage in Front ECU

DESCRIPTION

When an abnormal IG power supply voltage of the front active stabilizer control ECU is detected, DTC C1959 is output.





WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
Inspect each fuse in the circuit before troubleshooting.

PROCEDURE

1. CHECK CONNECTOR CONNECTION CONDITION

(a) Turn the power switch off.

(b) Check that the connectors of the front active stabilizer control ECU are not loose or disconnected.

OK:

Connectors are not loose or disconnected.

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

2. CHECK HARNESS AND CONNECTOR (IG VOLTAGE)

(a) Turn the power switch off.

(b) Disconnect the g13 ECU connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE ACTIVE STABILIZER CONTROL ECU ASSEMBLY Removal