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Toyota Truck
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2007
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Tacoma 2WD V6-4.0L (1GR-FE)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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C Code Charts
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C1257
C1257
DTC C1257/57 IG Power Source
DESCRIPTION
DTC Detecting Condition:
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.
INSPECTION PROCEDURE
Step 1-2: