Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: High Power Supply Voltage Malfunction (C1417)

DESCRIPTION

If a malfunction is detected in the power supply circuit, the skid control ECU (housed in the master cylinder solenoid) stores this DTC and the fail-safe function prohibits ABS/VSC/TRAC 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.

This DTC is cleared when the IG1 terminal voltage returns to normal.

DTC Code

DTC Detection Condition

Trouble Area

C1417

The IG1 terminal voltage is 17.4 V or higher for 0.8 seconds or more.

  • Charging system
  • Power source circuit
  • Internal power supply circuit of the skid control ECU (master cylinder solenoid)

WIRING DIAGRAM

Refer to DTC C1241 (See page CAUTION / NOTICE / HINT ).

CAUTION / NOTICE / HINT

NOTICE:

When replacing the skid control ECU (master cylinder solenoid), perform calibration (See page PROCEDURE ).

PROCEDURE

1.

INSPECT SKID CONTROL ECU (IG1 TERMINAL)

NG

GO TO CHARGING SYSTEM (ON-VEHICLE INSPECTION)

OK

2.

RECONFIRM DTC

(a) Clear the DTCs (See page ). (b) Turn the ignition switch off. ).

(b) Turn the ignition switch off.

(c) Check for DTCs (See page ). Result ).

Result

Result

Proceed to

DTC is output

A

DTC is not output

B

A

REPLACE MASTER CYLINDER SOLENOID

B

USE SIMULATION METHOD TO CHECK

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