B1019

DTC B1019

CIRCUIT DESCRIPTION
The powertrain interface module (PIM) is configured for either a manual or automatic transmission vehicle. If the PIM is configured for manual transmission and it receives any messages on the GM LAN which originate from the transmission control module (TCM), DTC B1019 sets.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B1019 ROM Configuration Mismatch

CONDITIONS FOR RUNNING THE DTC
Conditions for running the DTC are:
- The ignition is switched ON.
- The ignition voltage is 10-16 V.
- The vehicle is fitted with an automatic transmission.

CONDITIONS FOR SETTING THE DTC
The PIM is configured for manual transmission and receives a message from the TCM via the GM LAN bus.

ACTION TAKEN WHEN THE DTC SETS
A check powertrain message is displayed on the instrument cluster multi-function display.

CONDITIONS FOR CLEARING THE DTC
Refer to Diagnostic General Descriptions for information on the conditions for clearing DTCs.

DIAGNOSTIC AIDS
Refer to Cruise Control Description and Operation for cruise control switch description, operation and inspection procedures. Refer to Cruise Control Schematics, Cruise Control Component Views, and Cruise Control Connector End Views. Refer to Testing for Intermittent Conditions and Poor Connections for intermittent fault conditions

TEST DESCRIPTION

Steps 1-8:

2. This step determines if the PIM is configured for manual transmission.
5. This step tests the PIM ground circuits and supply voltage.
6. This step tests the PIM harness connector for serviceability.