LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1371 ((Amplifier (Amp) - Electrical Diagnostics - Base)) >> DTC Troubleshooting >> B1403-92-Channel 4 Audio Speaker Output - Performance Or Incorrect Operation >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, read Amplifier DTCs and record on the repair order.
    2. With the scan tool, erase DTCs.
    3. Using the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    4. With the scan tool, read Amplifier DTCs.

      Did the DTC return?

      Yes 

      • Go To  2

      No 

  2. RIGHT FRONT SPEAKER ELECTRICAL CONNECTION CHECK 
    1. Turn the ignition off.
    2. Disconnect the Right Front Speaker and Amplifier harness connectors.
    3. Check for the presence of loose or damaged connections at the Right Front Speaker and Amplifier harness connectors.

      Were there signs of any of the connections being loose or damaged?

      Yes 

      No 

      • Go To  3
  3. CHECK THE RIGHT FRONT SPEAKER SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the Right Front Speaker Signal circuit between the Right Front Speaker harness connector and the Amplifier harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair the Right Front Speaker Signal circuit for an open or high resistance?
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  4. CHECK THE RIGHT FRONT SPEAKER FOR A SHORT TO GROUND 
    1. Check for continuity between ground and the Right Front Speaker Signal circuit at the Right Front Speaker harness connector.

      Was a short to ground detected?

      Yes 

      • Repair the Right Front Speaker Signal circuit for a short to ground.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  5
  5. CHECK FOR A SHORT BETWEEN THE RIGHT FRONT SPEAKER CIRCUITS 
    1. Check for continuity between circuits at the Right Front Speaker harness connector.

      Was there a presence of a short between circuits in the Right Front Speaker wiring?

      Yes 

      • Repair the short between circuits in the Right Front Speaker wiring.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  6
  6. CHECK THE RIGHT FRONT SPEAKER FOR A SHORT TO VOLTAGE 
    1. Turn the ignition on.
    2. Measure the voltage on the Right Front Speaker Signal circuit at the Right Front Speaker harness connector.

      Is there any voltage present?

      Yes 

      • Repair the Right Front Speaker Signal circuit for a short to voltage.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  7
  7. CHECK THE RIGHT FRONT SPEAKER OPERATION 
    1. Check that the Right Front Speaker is working correctly.

      Is the Right Front Speaker working correctly?

      Yes 

      No