Checking Charging System Operation With No DTC's Present

Tests 1 - 4:

Tests 5 - 9:

Tests 10 - 11:

SYMPTOM
CHARGING SYSTEM NO CODE

POSSIBLE CAUSES
- Trouble codes present
- Trouble codes present (2000 rpm)
- Generator field terminal intermittent defect
- Generator ground circuit high resistance
- Generator belt
- B(+) circuit high resistance (0.4 volt)
- B(+) circuit high resistance (1.0 volt)
- PCM (charging system no code)