Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 670 (CRUISE CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P0572 OR P0573CIRCUIT/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 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connectors at the appropriate control modules listed below.
- ECM X2 (LY7)
- ECM X1 (LH2)
- TCM
- Connect a test lamp between the appropriate signal circuit terminal listed below and ground.
- ECM terminal 52 (LY7)
- ECM terminal 7 (LH2)
- TCM terminal 6 (6L50E)
- TCM terminal F38 (5L40E)
- Ignition ON, verify the test lamp turns ON and OFF when pressing and releasing the brake pedal.
- If the test lamp is always ON, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
- If the test lamp is always OFF, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
- Ignition OFF, connect the harness connector at the ECM module.
- Connect a test lamp between the appropriate signal circuit terminal listed below and ground.
- TCM terminal 6 (6L50E)
- TCM terminal F38 (5L40E)
- Ignition ON, verify the test lamp turns ON and OFF when pressing and releasing the brake pedal.
- If the test lamp is always OFF, test the signal circuit for a short to ground or an open/high resistance. If the circuit test normal, replace the ECM.
- If all circuits test normal, replace the TCM.
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.
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.