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Home >> Chevrolet >> 2010 >> Cobalt LS, 4D Sedan, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Audio System) >> Symptom Troubleshooting >> Audio unit power switch will not turn off (without navigation)

Audio unit power switch will not turn off (without navigation)

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
  • Check for aftermarket accessories plugged into the vehicle's accessory power sockets.
  • Check the connectors for poor connections or loose terminals.
  1. Turn the ignition switch to ON (II).
  2. Push the power switch button OFF or turn the ignition switch to LOCK (0) to see if the audio unit turns OFF.

    Does the audio unit turn off? 

    YES  -Operation is normal.

    NO  -

    • Except DX model: Go to step 3.
    • DX model: Go to step 5.

  3. Turn the ignition switch to LOCK (0).
  4. Measure the voltage between audio unit connector A (24P) terminal No. 14 and body ground.
    Fig 1: Measuring Voltage Between Audio Unit Connector A (24P) Terminal No. 14 And Body Ground
    G06431830Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  -Check for short to power on the PUR wire.

    NO  -Substitute a known-good audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio unit.

  5. Turn the ignition switch to LOCK (0).
  6. Measure the voltage between audio unit connector A (24P) terminal No. 14 and body ground.
    Fig 2: Measuring Voltage Between Audio Unit Connector A (24P) Terminal No. 14 And Body Ground
    G00501866Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  -Check for short to power on the PUR wire.

    NO  -Substitute a known-good audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio unit.