Replacement
REPLACEMENT
CAUTION / NOTICE / HINT
NOTICE:
Immediately wash off any brake fluid that comes into contact with any painted
surfaces.
HINT:
If any work is done on the brake system or if air in th ...
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
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Related Tacoma materials
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
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Power Supply Drive Circuit (C1257)
DESCRIPTION
The motor relay (semiconductor relay) is built into the hydraulic brake booster
and drives the pump motor based on a signal from the skid control ECU (master cylinder
solenoid).
DTC No.
DTC Detecting Condition
Trouble Areas
C1257
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Removal
REMOVAL
PROCEDURE
1. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
2. REMOVE FRONT WHEELS
3. REMOVE FRONT UPPER FENDER APRON SEAL
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4. REMOVE NO. 2 ENGINE UNDER COVER SUB-ASSEMBLY (w/ Off Road Package)
5. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY
6. REMOVE FRONT DIFFERENTIAL CARRI ...