B1466
B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOWB1466-ChanneL 2 Audio Speaker Output Circuit Low:
WHEN MONITORED
With the ignition on.
SET CONDITION
The Amplifier detects a shorted to ground condition on the speaker output circuit.
POSSIBLE CAUSES
- (X208) amplified right front I/P speaker (+) circuit shorted to ground
- (X298) amplified right front I/P speaker (-) circuit shorted to ground
- Right front I/P speaker
- Amplifier
DIAGNOSTIC TEST
1. CHECK FOR AN INTERMITTENT CONDITION
Turn the ignition on, then off, and then on again.
With the scan tool, read Amplifier DTCs.
Q: Does the scan tool display active: B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW?
YES: Go To 2
NO: The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform BODY VERIFICATION TEST VER-1. Body Verification Test
2. CHECK THE (X208) AMPLIFIED RIGHT FRONT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND
Disconnect the Amplifier C2 harness connector.
Measure the resistance between ground and the (X208) Amplified Right Front I/P Speaker (+) circuit.
Q: Is the resistance below 10K ohms?
YES: Repair the (X208) Amplified Right Front I/P Speaker (+) circuit for a short to ground. Perform BODY VERIFICATION TEST VER-1. Body Verification Test
NO: Go To 3
3. CHECK THE (X298) AMPLIFIED RIGHT FRONT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND
Measure the resistance between ground and the (X298) Amplified Right Front I/P Speaker (-) circuit.
Q: Is the resistance below 10K ohms?
YES: Repair the (X298) Amplified Right Front I/P Speaker (-) for a short to ground. Perform BODY VERIFICATION TEST VER-1. Body Verification Test
NO: Go To 4
4. CHECK OPERATION OF THE AMPLIFIED RIGHT FRONT I/P SPEAKER
Turn the ignition off.
Reconnect and reinstall the Right Front I/P Speaker.
Measure the resistance of the speaker circuit between the Amplifier C2 harness connector and ground..
Q: Is the resistance below 10K ohms?
YES: Replace the Right Front I/P Speaker. Perform BODY VERIFICATION TEST VER-1. Body Verification Test
NO: Replace the Amplifier. Perform BODY VERIFICATION TEST VER-1. Body Verification Test