Self-Diagnostic - System

WARNING: This page is about a different car, the 1998 Pontiac Grand Am, 1998 Oldsmobile Achieva, and 1998 Buick Skylark. However, it is still accessible from the selected car via links, so may be relevant.

Instrument Panel Cluster (IPC) may set Diagnostic Trouble Codes (DTCs) under certain conditions. These DTCs may be retrieved using a scan tool. See DIAGNOSTIC TROUBLE CODE (DTC) TESTS table. If THEFT SYSTEM indicator light does not illuminate, replace instrument panel.

DIAGNOSTIC TROUBLE CODE (DTC) TESTS

DTC

⁽¹⁾ Test No.

B1011

B1012

B1013

B1014

B1015

B1017

B1021

⁽²⁾

B1022

⁽²⁾

B1023

⁽²⁾

B1024

B1025

B1026

B1027

B1028

P1601

⁽²⁾

P1629

⁽³⁾

No Code

⁽¹⁾	See appropriate test under TESTING - DIAGNOSTIC .

⁽²⁾	These DTCs may be caused by an open or short in UART serial data line. See WIRING DIAGRAMS .

⁽³⁾	This code indicates PCM theft deterrent failure. See procedures in TESTS W/CODES - 2.4L article, or TESTS W/CODES - 3.1L article in ENGINE PERFORMANCE section.