FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

HV1 - Enter Output State Diagnostic Test Mode: Check CANP



- Key Off.

- Install a Scan Tool.

- Disconnect CANP solenoid.

- Disconnect electrical connector on the speed control servo, if equipped.

- Connect DVOM positive test lead to the VPWR circuit and negative test lead to the CANP circuit at the CANP solenoid vehicle harness connector.

- Key On, Engine Off.

- Turn on the Scan Tool outputs with the trigger button.

- Observe CANP voltage reading on the DVOM and record.

- Turn the outputs off with the Scan Tool trigger button.

- Observe CANP voltage reading on the DVOM and record.

- Cycle the Scan Tool trigger button On and Off several times.

- Does the CANP circuit cycle 0.5 volts or greater on the DVOM?

YES -- PCM capable of detecting CANP output signal change. LEAVE CANP solenoid disconnected. EXIT Output State DTM. Go to HV2. HV2 - Check Carbon Canister

NO -- Go to HV9. HV9 - DTC 0443: Check CANP Resistance