P1246 1997 FORD F150 Possible Causes
- Faulty alternator/generator
- Alternator/generator wiring harness is open or shorted
- Poor electrical connection in alternator/generator circuit
- Damaged Powertrain Control Module (PCM)
How is code P1246 1997 FORD F150 repaired?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P1246 1997 FORD F150 Meaning
The Powertrain Control Module (PCM) monitors generator load from the generator/regulator as frequency. The frequency range is determined by voltage regulator temperature where 97% represents full load, below 6% means no load.