B1469
B1469-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHERB1469 - Channel 2 Audio Speaker Output Circuit Shorted Together:
WHEN MONITORED
With the ignition on. Radio volume at 25 or higher.
SET CONDITION
The amplifier detects that the output circuits are shorted together.
POSSIBLE CAUSES
- (X208) Amplified right I/P speaker (+) circuit shorted to the (X298) amplified right I/P speaker (-) circuit
- Amplified right 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, erase Amplifier DTCs.
Turn the radio on.
Turn the volume level to 25.
With the scan tool, read Amplifier DTCs.
Q: Does the scan tool display active: B1469-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER?
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 OPERATION OF THE AMPLIFIED RIGHT I/P SPEAKER
Disconnect the Amplified Right I/P Speaker.
Measure the resistance of the speaker between the two terminals.
Q: Is the resistance of the speaker less than 1 ohm?
YES: Replace the Amplified Right I/P Speaker.
Perform BODY VERIFICATION TEST VER-1. Body Verification Test
NO: Go To 3
3. CHECK THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT, AND THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Measure the resistance between the (X208) Amplified Right I/P Speaker (+) circuit, and the (X298) Amplified Right I/P Speaker (-) circuit.
Q: Is the resistance below 10K ohms?
YES: Repair the (X208) Amplified Right I/P Speaker (+) circuit, and the (X298) Amplified Right I/P Speaker (-) circuit for a short together.
Perform BODY VERIFICATION TEST VER-1. Body Verification Test
NO: Replace the Amplifier.
Perform BODY VERIFICATION TEST VER-1. Body Verification Test