Home/Pontiac/Firebird/Pontiac Firebird IV (1993-2002)/Repair manual/Testing & Diagnostics/DTC P0122 - TP SENSOR CIRCUIT LOW VOLTAGE

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Wiring diagrams Section: Testing & Diagnostics

Connector Terminal Identification

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DTC P0122 - TP SENSOR CIRCUIT LOW VOLTAGE Pontiac Firebird IV

Testing & Diagnostics

Note. For circuit reference, see the appropriate WIRING DIAGRAMS article. For connector and terminal identification, see CONNECTOR IDENTIFICATION .

Circuit Description

Throttle Position (TP) sensor measures amount of throttle opening. PCM uses TP sensor information for fuel delivery calculations. TP sensor readings during acceleration are much higher than those during deceleration or idle.

Condition for setting DTC

Ignition on.
TP sensor signal voltage less than 0.16 volt.
Conditions present for longer than one seconds.