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Home >> Mercury >> 2005 >> Mountaineer 2WD V8-4.6L SOHC VIN W >> Repair and Diagnosis >> Starting and Charging >> Charging System >> Testing and Inspection >> Pinpoint Tests >> Test E: The Charging System Warning Indicator Is Off With the Ignition Switch In the Run Position and the Engine Off

Test E: The Charging System Warning Indicator Is Off With the Ignition Switch In the Run Position and the Engine Off

PINPOINT TEST E: THE CHARGING SYSTEM WARNING INDICATOR IS OFF WITH THE IGNITION SWITCH IN THE RUN POSITION AND THE ENGINE OFF


E1:






E1-E2:






Normal Operation
Under normal operation, the I (ignition) circuit 904 (LG/RD) measures 6-8 volts (C102a connected) with the ignition switch in the ON position and the engine not running. This causes the charging system warning indicator to turn on. This circuit is also used to turn the charging system warning indicator on if there is a fault in the charging system.

Possible Causes
- instrument cluster
- generator