LEMON Manuals: Even more car manuals for everyone
Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Suspension Control System - Air Suspension System) >> Diagnostic Information and Procedures >> DTC C0625 or C0630 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, remove the ELC MDL Fuse in the rear fuse block and disconnect the harness connector at the appropriate position sensor.
  2. Test for less than 2.0 ohms between low reference circuit terminal 3 (LR) or terminal 1 (RR) and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the air suspension control module.
  3. Install the ELC MDL Fuse in the rear fuse block.
  4. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal 1 (LR) or terminal 3 (RR) and ground.
    • If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the air suspension control module.
    • If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the air suspension control module.
  5. Verify the appropriate scan tool Position Sensor parameter is less than 0.5 volts.
    • If greater than the specified range, test the signal circuit terminal 2 for a short to voltage. If the circuit tests normal, replace the air suspension control module.
  6. Install a 3A fused jumper wire between the signal circuit terminal 2 and the 5-volt reference circuit terminal 1 (LR) or terminal 3 (RR). Verify the appropriate scan tool Position Sensor parameter is greater than 4.8 volts.
    • If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the air suspension control module.
  7. If all circuits test normal, test or replace the rear suspension position sensor.
scientia non olet · About LEMON Manuals