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Infinity Radio Test 1C - Shorted Front Channel

NOTE: Perform INFINITY RADIO TEST 1B before proceeding with this test. For connector terminal identification and wiring diagrams, see appropriate sections in this article. Perform VERIFICATION TEST VER-1A after each repair.
CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector.
  1. Turn radio on. Disconnect left instrument panel speaker. If sound is restored to front channel when speaker is disconnected, replace speaker. If sound is not restored to front channel when speaker is disconnected, go to next step.
  2. Reconnect speaker and disconnect right instrument panel speaker. If sound is restored to front channel when speaker is disconnected, replace speaker. If sound is not restored to front channel when speaker is disconnected, go to next step.
  3. Disconnect driver's door speaker. If sound is restored to front channel when speaker is disconnected, replace speaker. If sound is not restored to front channel when speaker is disconnected, go to next step.
  4. Disconnect passenger's door speaker. If sound is restored to front channel when speaker is disconnected, replace speaker. If sound is not restored to front channel when speaker is disconnected, go to next step.
  5. Turn ignition off. Disconnect Black connector from back of radio. Disconnect left instrument panel speaker. Using scan tool in ohmmeter mode, measure resistance on Black connector, terminal No. 4 (Dark Green wire). If resistance is less than 5 ohms, repair Dark Green wire for short to ground. If resistance is 5 ohms or greater, go to next step.
  6. Using scan tool in ohmmeter mode, measure resistance on Black connector, terminal No. 5 (Violet wire). If resistance is less than 5 ohms, repair violet wire for short to ground. If resistance is 5 ohms or greater, go to next step.
  7. Disconnect Gray connector on back of radio. Using scan tool in ohmmeter mode, measure resistance on Gray connector, terminal No. 2 (Brown/Red wire). If resistance is less than 5 ohms, repair Brown/Red wire for short to ground. If resistance is 5 ohms or greater, go to next step.
  8. Using scan tool in ohmmeter mode, measure resistance on Gray connector, terminal No. 3 (Dark Blue/Red wire). If resistance is less than 5 ohms, repair Dark Blue/Red wire for short to ground. If resistance is 5 ohms or greater, replace radio.
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