Diagnostic Aids

With no back-up power supplied to PCM, DTC P1510 will only remain in PCM memory with ignition on. When ignition is turned off, PCM will lose memory and DTC P1510 will not be stored. Ensure all fuses are okay. Replace as necessary. An intermittent malfunction may be caused by a poor connection, rubbed-through wire insulation, or a wire broken inside insulation. Inspect harness connectors for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals, or poor terminal-to-wire connections before component replacement.