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1999 Ford ranger charging problem
- Carfreek
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- Tyler
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- Full time HACK since 2012
6 years 8 months ago #33120
by Tyler
Replied by Tyler on topic 1999 Ford ranger charging problem
Are you sure your Ranger doesn't have a charge light? :huh: You don't see one come on during the KOEO bulb check?
From looking at the diagrams, it looks like the voltmeter has no input to the charging system directly. It just runs off the power and ground supplied by the instrument cluster:
The voltage checks at the alternator (if your Ranger isn't charging) are pretty straightforward:
Power at the heavy black/orange cable, power at the yellow/white at the regulator, ground at the alternator case.
What the light green/red wire should have depends on what the charge light is doing. If the light is off with the engine running, it should be within a volt of battery voltage. If the light is on, it should be one to two volts.
From looking at the diagrams, it looks like the voltmeter has no input to the charging system directly. It just runs off the power and ground supplied by the instrument cluster:
The voltage checks at the alternator (if your Ranger isn't charging) are pretty straightforward:
Power at the heavy black/orange cable, power at the yellow/white at the regulator, ground at the alternator case.
What the light green/red wire should have depends on what the charge light is doing. If the light is off with the engine running, it should be within a volt of battery voltage. If the light is on, it should be one to two volts.
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