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P2138-ACCELERATOR PEDAL POSITION SENSOR 1/2 CORRELATION (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 EXCESSIVE RESISTANCE IN THE (F855) 5-VOLT SUPPLY CIRCUIT EXCESSIVE RESISTANCE IN THE (F856) 5-VOLT SUPPLY CIRCUIT EXCESSIVE RESISTANCE IN THE (K167) SENSOR NO.1 RETURN CIRCUIT EXCESSIVE RESISTANCE IN THE (K400) SENSOR NO.2 RETURN CIRCUIT EXCESSIVE RESISTANCE IN THE (K23) APP SENSOR NO.1 SIGNAL CIRCUIT EXCESSIVE RESISTANCE IN THE (K29) APP SENSOR NO.2 SIGNAL CIRCUIT APP SENSOR PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. ACTIVE DTC 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 DTCs. NOTE: Repair any other 5-Volt Supply or APPS High and Low DTCs before diagnosing P2138. Is the DTC active at this time? Yes >> Go To 2 No >> Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 9 - 952 ENGINE ELECTRICAL DIAGNOSTICS WK |