Test K
PINPOINT TEST K: DTC C1288 AND C1440 (ABS WITH STABILITY ASSIST)-BRAKE PRESSURE TRANSDUCER INPUT CIRCUIT FAILURECAUTION: Use the flex probe kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes. point Test L: DTC C1730-Reference Voltage Out Of Range (+5 V)
Normal Operation
The primary brake pressure transducer sends current to the ABS module proportional to the driver's brake pedal application.
Reference voltage is supplied by circuit 3601 (WH/RD). Ground is provided through circuit 3603 (RD). The transducer current is supplied by circuit 3600 (RD/WH).
Possible Causes
^ circuit 3600 (RD/WH) open, short to power or ground
^ circuit 3601 (WH/RD) open, short to power or ground
^ circuit 3603 (RD) open, short to power or ground
^ Primary brake pressure transducer
^ ABS module