2012 Jeep Wrangler JK Factory Service Manual 28 - DTC-Based Diagnostics

P2116-ACCELERATOR PEDAL POSITION SENSOR 2 MINIMUM STOP PERFORMANCE

P2116-ACCELERATOR PEDAL POSITION SENSOR 2 MINIMUM STOP PERFORMANCE

For a complete wiring diagram, refer to the Wiring Information.


Thoery of operation

The Electronic Throttle Control (ETC) system uses two Accelerator Pedal Position (APP) sensors to monitor the accelerator pedal position. The APP sensors 1 and 2 are located within the pedal assembly. Each sensor has a 5-volt reference circuit, a low reference circuit, and a signal circuit. Processors are also used to monitor the ETC system data. The processors are located within the Powertrain Control Module (PCM). Each signal circuit provides processors with a signal voltage proportional to pedal movement. The processors share and monitor data to verify that the indicated APP calculation is correct.


POSSIBLE CAUSES

ETC RELEARN
ACCELERATOR PEDAL POSITION SENSOR

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).


1. DTC IS ACTIVE


1. Turn the ignition on.


NOTE: This DTC is set when the APPS values are learned in-plant but do not reach the minimum or maximum voltage range.

NOTE: Diagnose any APPS out of range and 5 volt supply DTCs before continuing.
2. With the scan tool, clear DTCs.
3. Start the engine.
4. With the scan tool, select View DTCs.


Is the status Active for this DTC?

Yes


No


2. ACCELERATOR PEDAL POSITION SENSOR


1. With a scan tool perform the ETC RELEARN function.
2. With the scan tool, clear DTCs.
3. Start the engine.
4. With the scan tool, select View DTCs.


Is the status Active for this DTC?

Yes


No