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Test L

PINPOINT TEST L: THE SUBWOOFER IS INOPERATIVE - VNR


Test L1-L2:






Test L3-L5:






Test L6:






Normal Operation
The subwoofer speakers are powered by the same audio unit amplifier that powers the door speakers. Circuit 173 (DG/VT) sends an enable signal to the audio unit amplifier.

Possible Causes
- circuit 167 (BN/OG) open
- circuit 168 (RD/BK) open
- circuit 176 (PK/LG) open
- circuit 179 (OG/RD) open
- circuit 187 (DB/OG) open
- circuit 189 (TN/LB) open
- subwoofer speaker(s)
- amplifier
- audio unit