C15A1

STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: C15A1/61: Actuator Malfunction
C15A1/61 - Actuator Malfunction

DESCRIPTION

The steering control ECU drives the actuator while the steering wheel is turned to set the gear ratio. It detects the current flowing into the actuator motor driving circuit.

If the steering control ECU detects excessive current, it will store this DTC C15A1/61, turn on the master warning light, and stop VGRS operation.





WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
When DTC C15A2/62 is output, a short circuit inside the steering actuator or inside the steering control ECU is suspected.

PROCEDURE

1. CHECK WIRE HARNESS

(a) Turn the engine switch off.





(b) Disconnect the connectors from the steering control ECU and the steering actuator.

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

Resistance:





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

2. CHECK STEERING ACTUATOR

(a) Connect the connector to the steering actuator.





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

Resistance:





NG -- REPLACE STEERING ACTUATOR

OK -- REPLACE STEERING CONTROL ECU