PZ2016

Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION

While the Ignition switch is in "RUN" modules communicating on the Class 2 Data Bus send a "State of Health" (SOH) message every S seconds to ensure that the system is operating properly.

DTC WILL SET WHEN

The PZM does not receive a SOH message from the PCM after three consecutive monitoring cycles.

DTC WILL CLEAR WHEN

The PCM transmits a SOH to the PZM.

DTC CHART TEST DESCRIPTION

1. This test ensures that the Powertrain Control Module is functioning normally outside of the loss of serial communication.

2. This test checks for an open between the PCM and C205.

3. This test checks for an open between C205 and the splice.

Troubleshooting Hints

If there are multiple Class 2 DTCs current (i.e. DTC PZ 2016, PZ 2096, PZ 2128, PZ 2152, PZ 2153), check for a short to ground or voltage in CKT 1807, refer to "Body Control Module System Check". Diagnostic System Check