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: Powertrain Control Module (PCM) may also be referred to as Vehicle Control Module (VCM). If PCM requires replacement, PCM must be reprogrammed using a Tech 2 or other OBD-II compatible scan tool. Some models may require additional equipment to program EEPROM. See PROGRAMMING .

NOTE: See PIN VOLTAGE CHARTS article for PCM connector terminal identification. To identify circuits and wire colors referenced in testing, see SYSTEM WIRING DIAGRAMS article.