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Home >> Isuzu >> 1996 >> Trooper Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Engine Controls - System/Component Tests - 2.6L 4-CYL) >> Computerized Engine Controls >> Powertrain Control Module (Pcm) >> Ground Circuits

Ground Circuits

WARNING: This page is about a different car, the 1996 Isuzu Rodeo. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect PCM connectors. Using an ohmmeter, check for continuity to ground on PCM harness ground terminals. See PCM GROUND CIRCUIT TERMINALS table. Resistance should be zero ohms. If not, locate and repair open in wire.
  2. Reconnect PCM connectors. Using a voltmeter, connect negative lead of voltmeter to a good ground. Backprobe positive lead of voltmeter to each ground terminal. With vehicle running, voltmeter should indicate less than one volt. If voltmeter reading is greater than one volt, check for open, short, corrosion or loose connection on ground circuit. Repair as necessary.
PCM GROUND CIRCUIT TERMINALS

Vehicle PCM Connector Terminal No.
Rodeo White C7
Rodeo White C8
Rodeo White C9
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