VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1417

DTC Code	DTC Name
C1417	High Power Supply Voltage Malfunction

DESCRIPTION

If a malfunction is detected in the power supply circuit, the skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS operation.

This DTC is stored when the IG1 terminal voltage deviates from the DTC detection condition due to a malfunction in the power supply or charging circuit such as the battery or generator circuit, etc.

The DTC is canceled when the IG1 terminal voltage returns to normal.


DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1417	High Power Supply Voltage Malfunction	The IG1 terminal voltage is 17.4 V or more for 0.8 seconds or more.	Charging system Backup boost converter circuit (w/ Stop and Start System) Internal power supply circuit of the skid control ECU (Brake actuator assembly)

WIRING DIAGRAM

Refer to DTC C1241.

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CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU (brake actuator assembly), perform zero point calibration.

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PROCEDURE

CHECK TERMINAL VOLTAGE (IG1 TERMINAL)

Make sure that there is no looseness at the locking part and the connecting part of the connectors.

*a	Front view of wire harness connector (to Skid Control ECU [Brake Actuator Assembly])

Disconnect the A64 skid control ECU (brake actuator assembly) connector.

Start the engine.

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

Standard Voltage


Tester Connection	Condition	Specified Condition
A64-34 (IG1) - Body ground	Engine running	11 to 14 V

Result


Proceed to
OK
NG (w/o Stop and Start System for 1AD-FTV)
NG (w/ Stop and Start System for 1AD-FTV)
NG (for 2AD-FHV)
NG (for 2AD-FTV)
NG (for 2AR-FE)
NG (for 3ZR-FAE)
NG (for 3ZR-FE)