Diagnostic Tests

WARNING: This page is about a different car, the 2000 Isuzu Hombre. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If PCM requires replacement, new PCM must be programmed using a Tech 2 or other OBD II compatible scan tool. When battery power is removed from PCM, system may lose stored/learned information, which could adversely affect driveability. See PROGRAMMING . For PCM harness connector and terminal identification, see appropriate chart in PIN VOLTAGE CHARTS article. To identify circuits and wire colors referenced in testing, see SYSTEM WIRING DIAGRAMS article.