No Sound From Left Rear Speaker

NO SOUND FROM LEFT REAR SPEAKER

No Sound From Left Rear Speaker:

POSSIBLE CAUSES
- Amplified left rear speaker (+) circuit open
- Amplified left rear speaker (-) circuit open
- Left rear speaker supply voltage circuit open
- Left rear speaker ground circuit open
- Left rear speaker

DIAGNOSTIC TEST

1. MEASURE LEFT REAR SPEAKER CIRCUIT RESISTANCE




Turn the ignition off.
Disconnect the Power Amplifier harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Disconnect the Left Rear Speaker harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Connect a jumper wire between cavity 1 and cavity 2 of the Left Rear Speaker harness connector.
Measure the resistance between cavity 6 (connector B) and cavity 16 (connector B) of the Power Amplifier harness connector.

Q: Is the resistance below 5.0 ohms?

YES: Go to 2
NO: Repair the Amplified Left Rear Speaker (+) or (-) circuit for an open. Perform BODY VERIFICATION TEST. Body Verification Test

2. MEASURE LEFT REAR SPEAKER CIRCUIT RESISTANCE




With the ignition off.
Connect a jumper wire between cavity 3 and cavity 4 of the Left Rear Speaker harness connector.
Measure the resistance between cavity 12 (connector B) and cavity 4 (connector B) of the Power Amplifier harness connector.

Q: Is the resistance below 5.0 ohms?

YES: Replace the Left Rear Speaker. Perform BODY VERIFICATION TEST. Body Verification Test
NO: Repair the Left Rear Speaker Ground circuit or Supply Voltage circuit for an open. Perform BODY VERIFICATION TEST. Body Verification Test