Charging System Diagnostics

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)