C1417

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM (for 2ZR-FE): C1417: High Power Supply Voltage Malfunction
C1417 - High Power Supply Voltage Malfunction

DESCRIPTION

If a malfunction is detected in the power supply circuit, the skid control ECU (housed in the 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 alternator circuit, etc.

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





WIRING DIAGRAM

Refer to DTC C1241 C1241.

INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration Programming and Relearning.

PROCEDURE

1. INSPECT ECU-IG NO. 1 FUSE

(a) Remove the ECU-IG NO. 1 fuse from the main body ECU (driver side junction block).





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

Standard resistance:





NG -- REPLACE ECU-IG NO. 1 FUSE
OK -- Continue to next step.

2. CHECK BATTERY

(a) Install the ECU-IG NO. 1 fuse.

(b) Check the battery voltage.

Standard voltage:

11 to 14 V

NG -- CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2ZR-FE) Component Tests and General Diagnostics
OK -- Continue to next step.

3. INSPECT SKID CONTROL ECU (IG1 TERMINAL)

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





(b) Disconnect the skid control ECU connector.

(c) Turn the ignition switch to ON.

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

Standard voltage:





HINT
If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step Problem Symptoms Table.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT)

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY Removal