Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2002 Lincoln Town Car, 2002 Lincoln Navigator, 2002 Lincoln LS, 2002 Lincoln Continental, and 2002 Lincoln Blackwood. However, it is still accessible from the selected car via links, so may be relevant.
Perform this test when directed by QUICK TEST. This test is intended to diagnose the following:
- Generator/Regulator
- Wiring Harness Circuits (GEN-MON, GEN-COM & BATT-SENSE)
- Powertrain Control Module (PCM)
DTC P1246 is set when PCM detects voltage regulator temperature (calculated generator load frequency) falls below 6 percent. Possible causes are:
- Generator Circuit Open, Or Shorted To GND Or PWR
- Faulty Generator Drive Mechanism
- Faulty Generator/Regulator Assembly
- Faulty PCM