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Test M

PINPOINT TEST M: THE KEYLESS ENTRY KEYPAD ILLUMINATION IS INOPERATIVE


Test M1:






Test M1-M3:






Test M3-M5:






Normal Operation
When the keypad illumination is activated, the smart junction box (SJB) supplies power to circuit 66 (LB) to illuminate the keypad. The keypad illumination is grounded through circuit 1205 (BK).

Possible Causes
- DTC B1626 keypad lamp output short circuit to ground
- circuit 66 (LB) open or shorted to ground
- circuit 1205 (BK) open
- keyless entry keypad
- SJB