Checking Charging System Operation With No DTC's Present

Tests 1 - 3:

Tests 4 - 8:

Test 9:

SYMPTOM
CHECKING CHARGING SYSTEM OPERATION WITH NO DTC'S PRESENT

POSSIBLE CAUSES
- B(+) circuit high resistance
- Generator ground high resistance
- B(+) circuit high resistance (1.0 volt)
- Generator belt observable problem
- Generator field terminal intermittent problem
- Trouble codes present
- Trouble codes present 2000 RPM
- PCM (charging system no code)