Passlock sensor data is supplied to the body control module (BCM) by circuit 1836.
The Passlock sensor data supplied to the BCM is in the form of V-codes or voltage
codes. When the proper ignition key is turned in the ignition switch, the correct
V-code is supplied to the BCM. The BCM responds by sending a serial data password
to the engine controller allowing the engine to run.
DTC Parameters
| • | The ignition is in RUN, START, or ACC. |
| • | Circuit 1836 is open or shorted-to-battery. |
Diagnostic Aids
| • | Check for a poor connection at the BCM. Inspect the harness connectors
for backed out terminals, improper terminal mating, broken connector locks, improperly
formed or damaged terminals, and poor terminal-to-wire connection (terminal crimped
over wire insulation and not conductors). |
| • | Inspect the wiring harness for damage. Check for broken or chaffed insulation. |
| • | Check for a poor connection at the Passlock sensor. |
| • | If a fault is suspected to be intermittent, wiggling the harness wiring
may help in locating the fault. |
