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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 446 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P0616CIRCUIT/SYSTEM TESTING
2006 Isuzu Ascender S, 5.3 M, 4WD

Circuit/System Testing

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2008 Pontiac Torrent and 2008 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, verify DTC P0616 is set as current.
  2. Ignition OFF, disconnect the CRANK relay, test for 60-80 ohms between relay terminals 85 and 86.
    • If not within the specified range, replace the crank relay.
  3. Test for less than 1.0 ohm between the relay ground circuit terminal 85 and ground.
    • If greater than the specified value, test the ground circuit for an open/high resistance.
  4. Ignition OFF, connect a test lamp between the control circuit terminal 86 and the ground circuit terminal 85. Turn the ignition to the start position. The test lamp should illuminate only when the ignition is held in the start position.
    • If the test lamp is always ON, test the control circuit for short to voltage.
    • If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance.
  5. If the circuit tests normal, replace the ECM.
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