DTC C1257: Power Supply Drive Circuit [10/2018 - ]: Procedure
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- CHECK DTC
- Clear the DTCs.
Refer to DTC CHECK / CLEAR [10/2018 - ]
Chassis > ABS/VSC/TRAC > Clear DTCs
- Turn the power switch off.
- Turn the power switch on (IG).
- Check if the same DTC is output.
Refer to DTC CHECK / CLEAR [10/2018 - ]
Chassis > ABS/VSC/TRAC > Trouble Codes
Result
Result Proceed to DTC C1257 is output. A DTCs C1241, C1242 and/or C1253 are output. B
Result:
A
REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to REMOVAL [10/2018 - 07/2022] , or refer to REMOVAL [07/2022 - ]
Result:
B
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2018 - 08/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [08/2021 - 07/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [07/2022 - ]
- Clear the DTCs.