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P2138 Diagnostic Trouble Code Discussion for May 2008

Accelerator Position Sensor 1-2 Correlation

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Trouble Ticket Help Requests for DTC P2138
Help Request Posted
2004 Nissan Titan LE 5.6L MIL Lamp on VIN: 1N6AA06B04
P2138: app sensor. None of the sensors have a 5 volt reference. I have checked all the sensors on the same ciruit, and no 5 volts. I have unplugged all sensors, still no 5 volts. I have back probed the pcm, still no 5 volts coming out to any sensors. I have checked powers and gr...
May 27, 2008
2006 Pontiac Grand Prix 3.8L Hesitation, Cuts out, Stall, MIL Lamp on, reduced power VIN: 2G2WP52261
P2138: Accelerator Pedal Position Sensor 1-2 Correlation Error. The problem only occurs during heavy rain. Loses control over elec throttle. Cannot duplicate symptom in shop. Replaced APP sensor, found corrosion in C101 (frt of L strut tower) and repaired. No joy. Am aware of TSB for H2O intrusion at L kick panel area - no...
May 27, 2008