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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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ECM/IPDM E/R Internal Circuit Inspection











ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION
Remove ECM (Engine Control Module) and IPDM E/R (Intelligent Power Distribution Module Engine Room) from vehicle.

Refer to "Removal and Installation of IPDM E/R" @ Power and Ground Distribution / Power Distribution Module.




Check resistance between ECM terminals 33 and 34 ( [2.5L] QR25DE models).

Check resistance between ECM terminals 109 and 113 ( [3.5L] VQ35DE models).

Check resistance between IPDM EIR terminals 48 and 49.