Operation CHARM: Car repair manuals for everyone.
Home >> Jeep >> 2012 >> Compass 4WD L4-2.4L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> B Code Charts >> B147F
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

B147F






B147F-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT LOW





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on.

- Set Condition:
The Amplifier detects a shorted to ground condition on the speaker output circuit.





1. CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on and open one of the front doors.

NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs.

2. Using the scan tool, record and erase the Amplifier DTCs.
3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
4. Turn the Radio on and set the volume to 25.
5. Adjust the speakers to the rear and center.
6. Using the scan tool, read the active Amplifier DTCs.

Does the scan tool display active: B147F-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT LOW?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK THE AMPLIFIED LIFTGATE SPEAKER FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Amplified Liftgate Speaker harness connector.
3. Turn the ignition on, engine not running.
4. With the scan tool, read the active DTCs.

Does the scan tool display: B147F-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT LOW?

Yes

- Go To 3

No

- Replace the Amplified Liftgate Speaker.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK THE (X214) AMPLIFIED LIFTGATE SPEAKER 1 (+) CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Measure the resistance between ground and the (X214) Amplified Liftgate Speaker 1 (+) circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the (X214) Amplified Liftgate Speaker 1 (+) circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. CHECK THE (X284) AMPLIFIED LIFTGATE SPEAKER 1 (-) CIRCUIT FOR A SHORT TO GROUND




1. Measure the resistance between ground and the (X284) Amplified Liftgate Speaker 1 (-) circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the (X284) Amplified Liftgate Speaker 1 (-) circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Amplifier.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

pro multis · About Operation CHARM