1996 PCED OBDI | SECTION 18: Diesel Diagnosis — 7.3L DI Engine |
AA: Idle Validation Switch (IVS) Introduction | AA: Pinpoint Tests |
The idle validation switch (IVS) provides the powertrain control module (PCM) with a signal to verify when the accelerator pedal is in the idle position.
Any detected malfunction of the IVS will illuminate the CHECK ENGINE light.
0220 = Throttle Switch B circuit malfunction.
0221 = Throttle Switch B circuit performance.
AA: Pinpoint Tests |