Rear Left Audio Speaker Output Circuit Open

B140B - Rear Left Audio Speaker Output Circuit Open






For a complete wiring diagram, refer to.

• When Monitored: With the radio on.

• Set Condition: When the output circuit is open for more than 3 seconds. The radio will not set the fault if the radio confirms an amplifier is on the bus.






Test Step 1 - Check for an Intermittent Condition

• Turn the ignition ON.

• With the scan tool, clear all audio DTC's.

• Turn the radio ON.

• With the scan tool, read the DTC information.

Does the scan tool display B140B - Rear Left Audio Speaker Output Circuit Open?

Yes

• Go to Test Step 2.

No

• The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Speaker Output Circuits

• Turn the ignition OFF.

• Disconnect the radio C1 harness connector.

• Disconnect the rear left audio speaker connector.

• Measure the resistance of each speaker (+) and (-) circuit between the radio and the speaker.

Is the resistance less than 5.0 ohms for each circuit?

Yes

• Go to Test Step 3.

No

• Repair the applicable output speaker circuit for an open condition.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 3 - Speaker

• Turn the ignition OFF.

• Disconnect the rear left audio speaker.

• Turn the ignition ON.

• Turn the radio ON.

• With the scan tool, clear all audio DTC's.

• With the scan tool, read the DTC information.

Does the scan tool display B140B - Rear Left Audio Speaker Output Circuit Open?

Yes

• Replace the speaker.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Test complete.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior