DTC C1257: Power Supply Drive Circuit [01/2019 - 09/2022]: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK DTC
- Clear the DTCs.
Refer to DTC CHECK / CLEAR [01/2019 - 09/2022]
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 [01/2019 - 09/2022]
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 [01/2019 - 09/2022]
Result:
B
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to DIAGNOSTIC TROUBLE CODE CHART [01/2019 - 04/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [04/2020 - 09/2022]
- Clear the DTCs.