Diagnostic Aids

Perform this test only when directed by QUICK TEST. This test is intended to diagnose the following:

• TP Sensor
• Binding Or Sticking Throttle Linkage
• Wiring Harness Circuits (PWR GND, SIG RTN, TP, VPWR & VREF)
• Powertrain Control Module (PCM)

Normal range of throttle angle measurement for TP sensor is 0-96.6 degrees. To pass QUICK TEST procedure, range of throttle rotation (in degrees) must be within 3 percent of specification. To prevent replacement of good components, be aware the following non-EEC related areas may be at fault:

• Idle Speed
• Binding Throttle Shaft Or Linkage
• TP Sensor Not Seated