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 MANUALSCHEVROLET2006HHR L4-2.2LREPAIR AND DIAGNOSISTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWDIAGNOSTIC SYSTEM CHECK - VEHICLE
2006 Chevrolet HHR L4-2.2L
Diagnostic System Check - Vehicle
2006 Chevrolet HHR L4-2.2LSECTION Diagnostic System Check - Vehicle
DIAGNOSTIC SYSTEM CHECK - VEHICLE
TEST DESCRIPTION
Step 1 - Step 6:
Step 7 - Step 8:
The numbers below refer to the step numbers on the diagnostic table.
1. This step ensures that the battery, and the vehicle primary power and ground systems are functioning correctly.
3. Lack of communication may be due to a particular malfunction of a serial data circuit. The information in Data Link References will provide a list of modules and the associated data network no communication diagnostic link.
4. A Power Mode Master, which is operating in the incorrect power mode based on key position, may cause other symptoms and/or DTCs to set. The information in Power Mode Mismatch will correct the condition before checking for module DTCs or symptoms.
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.