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Illumination Inoperative - Audio System

PINPOINT TEST 4 - ILLUMINATION INOPERATIVE - AUDIO SYSTEM

PINPOINT TEST 4 ILLUMINATION IS INOPERATIVE - AUDIO SYSTEM
STEP INSPECTION ACTION
1 CHECK FOR POWER TO THE AUDIO UNIT
  • Disconnect Audio Unit 0920-201
  • Place the headlamp switch in the PARK position.
  • Rotate the instrument panel dimmer switch to the full illumination position.
  • Measure the voltage between the audio unit 0920-201 pin 1, circuit LB/R, harness side and ground.
  • Is the voltage greater than 10 volts? 
Yes Go to step 2.
No Repair the circuit. Test the system for normal operation.
2 CHECK FOR GROUND AT THE AUDIO UNIT
  • Measure the resistance between the audio unit 0920-201 pin 2, circuit B, harness side and ground.
  • Is the resistance less than 5 ohms? 
Yes REMOVE the audio unit and SEND it to an authorized audio system repair facility. After the repair, Test the system for normal operation.
No Repair the circuit. Test the system for normal operation.
G03731139