Circuit/System Testing
WARNING: This page is about a different car, the 2007 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Verify that the iPod® is in good working order and visually inspect the iPod® connector cavity for any signs of damage before performing this diagnostic. Verify the proper software has been downloaded from http://www.apple.com/support/ipod/to the iPod® before performing this diagnostic.
- Set the radio to the iPod® interface menu and attempt to operate audio from the iPod®.
- Gently wiggle the interface harness at the connection to the iPod®. Verify that the iPod® interfaces with the radio when the connector is wiggled.
- If the iPod® interfaces with the radio intermittently when the connector is wiggled, inspect the iPod® connector cavity or interface cable for damage. Replace the suspect iPod® interface cable or inform the customer that the iPod® may be damaged.
- Ignition ON, Observe the PAL red LED lamp. Verify the red LED lamp is illuminated.
- If the PAL red LED is not illuminated, go to iPod Audio Distorted or Inoperative - One or More Speakers .
- Near the BCM connector, verify the serial data circuit from PAL is properly spliced to the CAN 2 serial data circuit.
- Disconnect the PAL and test the CAN 2 serial data circuit for an open.
- If all circuits test normal replace the PAL.