P2130

DTC P2130

CIRCUIT DESCRIPTION
The accelerator pedal position (APP) sensor is mounted on the accelerator pedal assembly. The sensor is actually 3 individual APP sensors within 1 housing. Three separate signal, low reference and 5-volt reference circuits connect the APP sensor assembly and the throttle actuator control (TAC) module. Each sensor has a unique functionality. The APP sensor 1 signal increases as the accelerator pedal is depressed, from below 1 volt at 0 percent pedal travel, with the pedal at rest, to above 2 volts at 100 percent pedal travel, with the pedal fully depressed. The APP sensor 2 signal decreases from above 4 volts at 0 percent pedal travel to below 2.9 volts at 100 percent pedal travel. The APP sensor 3 signal decreases from around 3.8 volts at 0 percent pedal travel to below 3.1 volts at 100 percent pedal travel. Notice that the signal circuits for APP sensor 2 and APP sensor 3 pull up to 5 volts and the APP sensor 1 signal circuit is referenced to low reference within the TAC module.

This DTC incorporates 2 different diagnostic tests:
- APP sensor 3 signal circuit voltage out of range
- Accelerator pedal minimum position for the APP sensor 3 out of range

If the PCM detects one or more of the APP sensor 3 tests are out of range, DTC P2130 sets.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC P2130 Accelerator Pedal Position (APP) Sensor 3 Circuit

CONDITIONS FOR RUNNING THE DTC
- DTCs P0606, P2108, or U0107 are not set.
- The ignition switch is in the crank or the run position.
- The ignition voltage is greater than 5.23 volts.
- DTC P2130 runs continuously once the above conditions are met.

CONDITIONS FOR SETTING THE DTC
- APP sensor 3 signal voltage is less than 1.63 volts or more than 4.38 volts.OR
- The accelerator pedal minimum position for the APP sensor 3 is more than 4.28 volts.
- One of the above conditions are present for more than 0.08 second.

ACTION TAKEN WHEN THE DTC SETS
- The control module stores the DTC information into memory when the diagnostic runs and fails.
- The malfunction indicator lamp (MIL) will not illuminate.
- The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure Records.
- If one or more APP sensor DTCs are set for a single APP sensor, the following occurs:
- The control module will not command Reduced Engine Power mode.
- The control module will use the remaining two APP sensors to calculate throttle response.
- If certain multiple APP sensor DTCs are set for more than one APP sensor, the following occurs:
- The control module commands Reduced Engine Power mode.
- The APP indicated angle is limited to a predetermined value to limit the amount of throttle control.
- The message center displays Reduced Engine Power.
- If all three APP sensors are out of range, the following occurs:
- The control module commands Reduced Engine Power mode.
- The APP indicated angle is limited to 0 percent. The control module only allows the engine to idle.
- The message center displays Reduced Engine Power.

CONDITIONS FOR CLEARING THE DTC
- A current DTC Last Test Failed clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.
- Clear the DTC with a scan tool.

DIAGNOSTIC AIDS
- Inspect the TAC module connectors for signs of water intrusion. When water intrusion occurs, multiple DTCs could be set with no DTC circuit or component conditions found during diagnostic testing.
- When the TAC module detects throttle movement with a DTC P2130 set, a DTC P2131 also sets.
- When the TAC module detects a condition within the TAC system, more than 1 TAC system related DTC may set. This is due to the many redundant tests that run continuously on this system. Locating and repairing 1 individual condition may correct more than 1 DTC. Disconnecting components during testing may set additional DTCs. Keep this in mind when reviewing the Capture Info.
- For an intermittent, refer to Intermittent Conditions. Intermittent Conditions

TEST DESCRIPTION

Steps 1-9:

Steps 10-18:

Steps 19-26:

The number below refers to the step number on the diagnostic table.
26. When the TAC module detects a condition within the TAC system, more than 1 TAC system related DTC may set. This is due to the many redundant tests that run continuously on this system. Locating and repairing 1 individual condition may correct more than 1 DTC. Disconnecting the components during testing may set additional DTCs. Keep this in mind when reviewing the Capture Info.