Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Pinpoint Test 1

PINPOINT TEST 1: ALL DOOR LOCKS ARE INOPERATIVE FROM ONE SWITCH

Normal Operation
The smart junction box (SJB) monitors circuits (P/Y), (P/LG), (O/B) and (Y/R) for a ground signal. If the door lock control switch connects circuit (P/LG) (driver door) or (O/B) (passenger door) to the ground circuit (B) the doors lock. If the door lock control switch connects circuit (P/Y) (driver door) or (Y/R) (passenger door) to the ground circuit (B) the doors unlock.

Possible Causes
- circuit (B) open
- circuit (P/Y) open or short to ground
- circuit (P/LG) open or short to ground
- circuit (O/B) open or short to ground
- circuit (Y/R) open or short to ground
- driver door lock control switch
- passenger door lock control switch
- SJB

Chart 1:






CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.


Step 1-Step 3:




Step 4-Step 5: