P1196 Key Off Voltage High (Diesel)
What does P1196 mean on a Ford?
P1196 — Key Off Voltage High (Diesel). This Ford-enhanced code applies to Ford diesel models with electronic injection control.
Common causes of P1196
- Charger or maintainer connected during the test
- Faulty voltage sense circuit
- Jump-start overvoltage event
- Failing batteries with surface charge
- Controller sense fault
How to fix P1196
- Disconnect chargers and retest
- Measure true battery voltage with a meter
- Let surface charge bleed off before testing
- Check sense wiring
- Clear and confirm the code does not return