Checking Charging System Operation With No DTC's Present

Tests 1 - 3:

Tests 4 - 8:

Test 9:

SYMPTOM
* CHARGING SYSTEM NO CODE

POSSIBLE CAUSES
- Trouble codes present 2000 RPM
- Trouble codes present
- Voltage difference < 1 Volt
- Generator field terminal intermittent problem
- Generator ground circuit high resistance
- Generator belt condition
- B(+) circuit high resistance (0.4 Volt)
- B(+) circuit high resistance (1.0 Volt)
- PCM (charging system no code)