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 Tests

PINPOINT TEST A: NO COMMUNICATION WITH THE SMART JUNCTION BOX (SJB)


A1-A2:






A2 Continued:






Normal Operation
The SJB receives power on circuit 785 (BK/LG) or circuit 1052 (TN/BK) on the Escape Hybrid. The SJB receives the ground on circuit 570 (BK/WH).

Possible Causes
- fuse
- circuit 570 (BK/WH) open
- circuit 785 (BK/LG) open
- circuit 1052 (TN/BK) open
- SJB