Test G

PINPOINT TEST G: LOUD POPPING SOUND WHEN CYCLING THE IGNITION SWITCH - CDX6

Test G1-G2:

Normal Operation
The START input circuit 1000 (RD/BK) is sent to the audio unit when the ignition switch is turned to the START position. The audio unit then immediately mutes all speaker amplifier outputs and the subwoofer amplifier enable circuit output to eliminate the possibility of speaker pops during engine cranking.

Possible Causes
- circuit 37 (YE) open
- circuit 168 (RD/BK) short to power
- audio unit