C1521

DTC C1521 VGRS ACTUATOR MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The VGRS ECU drives the actuator while turning the steering wheel to set the gear ratio.

It detects the current flowing into the actuator motor driving circuit. When the VGRS ECU detects excessive current, it records the DTC, turns on the VGRS warning light, and stops VGRS operation.

Wiring Diagram:

Step 1:

INSPECTION PROCEDURE

HINT: When DTC C1521/21 is output, a short circuit inside the actuator or inside the ECU is suspected.