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.
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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 255 (CELLULAR SYSTEMS, ENTERTAINMENT SYSTEMS & NAVIGATION SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESPERSONAL AUDIO LINK MODULE MALFUNCTIONCIRCUIT/SYSTEM TESTINGOVERVIEW
2008 Chevrolet HHR LT, 2.4 P, Automatic
Circuit/System Testing: Overview
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Overview
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the PAL module.
- Test for less than 5 Ξ© between terminal 9 and ground.
- If greater than specified value, test the ground circuit for an open/high resistance.
- Ignition ON, verify that a test lamp illuminates between terminal 16 and ground.
- If the test lamp does not illuminate, test the B+ circuit for an open/high resistance.
- Ignition OFF, reconnect the harness connector at the PAL module.
- Disconnect the X2 harness connector at the radio.
- Radio ON, iPod sourced and playing, test for a varying mV AC voltage between the following signal circuit terminals listed below and ground.
- Left audio signal (+) - terminal 1
- Right audio signal (+) - terminal 2
- Audio common signal (-) - terminal 9
- If the varying mV A/C voltage is not present, test the signal circuit for a short to voltage, short to ground, or an open/high resistance. If the circuits tests normal, replace the PAL module.
- If all circuits test normal, replace the radio.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.