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P2127-ACCELERATOR PEDAL POSITION SENSOR 2 CIRCUIT LOW (CONTINUED) For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS). For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes (F856) 5-VOLT SUPPLY CIRCUIT OPEN (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND (K29) APP SENSOR NO.2 SIGNAL CIRCUIT OPEN (K29) APP SENSOR NO.2 SIGNAL CIRCUIT SHORTED TO GROUND (K29) APP SENSOR NO.2 SIGNAL CIRCUIT SHORTED TO THE (K167) APP SENSOR NO.1 RETURN CIRCUIT (K29) APP SENSOR NO.2 SIGNAL CIRCUIT SHORTED TO THE (K400) APP SENSOR NO.2 RETURN CIRCUIT APP SENSOR PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. APP SENSOR BELOW 0.25 OF A VOLT NOTE: When this DTC is Active the engine speed, torque, and vehicle speed are limited to a Limp in mode. With a scan tool, read the APP Sensor No.1 voltage. NOTE: Sensor No. 2 is pulled low by the PCM as part of its system testing. This test happens a couple of Is the voltage consistently below 0.25 of a volt? Yes >> Go To 2 No >> Go To 11 9 - 932 ENGINE ELECTRICAL DIAGNOSTICS WK |