Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2007 >> E 150 V8-5.4L >> Repair and Diagnosis >> Starting and Charging >> Charging System >> Testing and Inspection >> Pinpoint Tests >> Dual Generators >> Test P: Battery Leakage Or Damage
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)

Or, hide this message: temporarily or permanently

Test P: Battery Leakage Or Damage

PINPOINT TEST P: BATTERY LEAKAGE OR DAMAGE


P1-P5:






P6:






Normal Operation
The battery(s) should be free of any damage and should not exhibit any signs of leakage.

Possible Causes
- Battery
- A circuit 35 (OG/LB) open, short to ground or high resistance
- Upper generator
- Lower generator
pro multis · About Operation CHARM