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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Controls - Self-Diagnostics - 3.0L) >> Diagnostic Tests >> DTC P2101: Throttle Actuator Control Motor Position Performance >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

If DTC P2101 is set, the ECM will default to one of the two limp home modes (random injector disable with engine speed limited to 2600 RPM). The REDUCED POWER telltale will be illuminated and the ECM will remain in this condition for the entire ignition cycle even if the fault is corrected.

To locate an intermittent problem, use scan tool to monitor DTC P2101 LAST TEST with engine running, while accelerating the engine up and down the RPM band. Watching for a change form PASSED to FAILED indicates a circuit fault or throttle plate restriction is occurring.

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