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P1120 Diagnostic Trouble Code Discussion for March 2012

TP Sensor 1 Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1120
Help Request Posted
1999 Lexus GS300 3.0L Cuts out, MIL Lamp on VIN: JT8BD68S4X
P1120: Accelerator Pedal Position Sensor Circuit Malfunction. ... during 1-2 and 2-3 transmission shifts. The transmission works fine in the 'manual select' mode, but once it is put in 'D' the transmission will neutral and the engine goes to Idle Speed RPM. Then there is no response from the engine when the accelarator p...
March 28, 2012