C15A1

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

DTC 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 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 HARNESS AND CONNECTOR (STEERING CONTROL ECU - STEERING ACTUATOR) Service and Repair




(a) Disconnect the E83 steering control ECU connector.
(b) Disconnect the E85 steering actuator connector.
(c) 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.
2. CHECK STEERING ACTUATOR Steering Actuator




(a) Disconnect the E83 steering control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
HINT: The resistance must be measured with the steering actuator connector connected.

Standard Resistance:






NG -- REPLACE STEERING ACTUATOR ASSEMBLY
OK -- REPLACE STEERING CONTROL ECU