Test P

Test P1-P5:

Test P6:

PINPOINT TEST P: DTC C1440-PRESSURE TRANSDUCER INPUT CIRCUIT FAILURE

NOTE: Excessive clearance between brake pad and rotor, leaks, or air in the hydraulic brake system can also set DTC 1440.

Normal Operation
The pressure transducer transforms brake fluid pressures in the master cylinder to an electrical signal which the ABS module receives through circuit 8-CF64 (WH/BK). The transducer receives a five-volt reference from the ABS module through circuit 7-CF64 (YE/BK). Circuit 9-CF64 (BN/YE) provides ground for the transducer.

Possible Causes
^ Power circuit 7-CF64 (YE/BK).
^ Ground circuit 9-CF64 (BN/YE).
^ Transducer signal circuit 8-CF64 (WH/BK).
^ Pressure transducer.
^ ABS module.