C15C6

STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: C15C6/77: IG Power Supply Voltage Malfunction
C15C6/77 - IG Power Supply Voltage Malfunction

DESCRIPTION

The steering control ECU monitors IG power supply voltage.

If the steering control ECU detects a malfunction, it will turn on the master warning light, store DTC C15C6/77, and stop VGRS operation.





WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
The fault may be intermittent. Check harnesses and connectors thoroughly and retest.

PROCEDURE

1. CHECK STEERING CONTROL ECU (POWER SOURCE CIRCUIT)

(a) Record and clear the DTCs Variable Gear Ratio Steering System.

(b) Start the engine.

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





Standard voltage:





Result:





B -- CHECK OR REPAIR HARNESS AND FUSE

C -- CHECK AND REPAIR CHARGING SYSTEM Testing and Inspection
A -- Continue to next step.

2. CHECK DTC

(a) Check for DTCs Variable Gear Ratio Steering System.

Result:





NG -- REPLACE STEERING CONTROL ECU Removal

OK -- END