SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 462 (POWER STEERING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC C0545CIRCUIT/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 OFF, disconnect the harness connector X3 at the PSCM.
  2. Ignition OFF, test for 2 - 20 ohms between the exciting circuit terminal 4 and the exciting ground circuit terminal 2 of the torque sensor.
    • If not within the specified range, test the exciting and exciting ground circuits for a short or an open/high resistance. If circuits test normal, replace the steering column.
  3. Ignition OFF, test for 100 - 500 ohms between the input SIN circuit terminal 8 and the torque sensor ground circuit terminal 1 of the torque sensor.
    • If not within the specified range, test the input SIN and the torque sensor ground circuits for a short or an open/high resistance. If circuits test normal, replace the steering column.
  4. Ignition OFF, test for 300 - 1000 ohms between the input COS circuit terminal 7 and the torque sensor ground circuit terminal 1 of the torque sensor.
    • If not within the specified range, test the input COS and the torque sensor ground circuits for a short or an open/high resistance. If circuits test normal, replace the steering column.
  5. Ignition OFF, test for 50 - 200 ohms between the output SIN circuit terminal 6 and the torque sensor ground circuit terminal 1 of the torque sensor.
    • If not within the specified range, test the output SIN and the torque sensor ground circuits for a short or an open/high resistance. If circuits test normal, replace the steering column.
  6. Ignition OFF, test for 200 - 800 ohms between the output COS circuit terminal 5 and the torque sensor ground circuit terminal 1 of the torque sensor.
    • If not within the specified range, test the output COS and the torque sensor ground circuits for a short or an open/high resistance. If circuits test normal, replace the steering column.
  7. Ignition OFF, test for greater than 1.0 Mega-ohms between the exciting ground circuit terminal 2 and the torque sensor ground terminal 1.
    • If less than the specified range, test the exciting ground circuit for a short to the torque sensor ground circuit. If circuits test normal, replace the steering column.
  8. Ignition OFF, test for greater than 1.0 Mega-ohm of resistance between the torque sensor ground circuit terminal 1 and ground.
    • If less than the specified range, test the torque sensor ground circuit for a short to ground. If circuits test normal, replace the steering column.
  9. Ignition OFF, test for greater than 1.0 Mega-ohms between the exciting ground circuit terminal 2 and ground.
    • If less than the specified range, test the exciting ground circuit for a short to ground. If circuits test normal, replace the steering column.
  10. If all circuits test normal, test or replace the PSCM.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.