Description
This DTC compares the throttle position (TP) sensor 1 input with the TP sensor 2 input. There are 2 TP sensors located on the throttle body inside of the throttle actuator control (TAC) module. The TP sensors are used to determine the throttle plate angle. The TAC module expects the output of the 2 TP sensors to follow the same linear path. If the 2 sensors report conflicting information to the TAC module, a DTC P2135 can set. The TP sensor is an integral part of the TAC module is not serviced separately. Installing a new TP sensor requires the replacement of the throttle body assembly. For additional information on the operation of the TP sensor and the TAC system refer to Throttle Actuator Control (TAC) System Description .
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P2135 Throttle Position (TP) Sensor 1/2 Correlation
Conditions for Running the DTC
| • | DTCs P0122, P0123, P0222, P0223, P0641, P0651, P2100, P2101, P2108, P2122, P2123, P2127, P2128, P2138, P2176, or U0107 are not set. |
| • | The ignition is ON. |
| • | The Idle Learn Procedure has been performed ensuring that the minimum throttle position value is stored in the PCM memory. |
| • | DTC P2135 runs continuously once the above conditions are met. |
Conditions for Setting the DTC
| • | The throttle angle between TP sensor 1 and TP sensor 2 is 5 percent or more. |
| • | The above condition is present for at least 135 milliseconds. |
Action Taken When the DTC Sets
| • | The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. |
| • | The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records. |
Conditions for Clearing the MIL/DTC
| • | The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail. |
| • | 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 emission related diagnostic. |
| • | Clear the MIL and the DTC with a scan tool. |
Test Description
The numbers below refer to the step numbers in the diagnostic table.
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The Diagnostic System Check - Vehicle prompts the technician to complete some basic checks and store the Freeze Frame data on the scan tool, if applicable. This creates an electronic copy of the data taken when the fault occurred. The information is then stored in the scan tool for later reference.
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This step determines if a fault is present.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Engine Controls Schematics Connector End View Reference: Powertrain Control Module Connector End Views or Engine Controls Connector End Views | ||||
Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | ||
Did DTC P2135 set? | -- | Go to Step 4 | Go to Step 3 | |
3 |
Did DTC P2135 set? | -- | Go to Step 4 | Go to Intermittent Conditions |
4 |
Did you complete the replacement? | -- | Go to Step 5 | -- |
5 |
Does the DTC run and pass? | -- | Go to Step 6 | Go to Step 2 |
6 | With a scan tool, observe the stored information, Capture Info. Does the scan tool display any DTCs that you have not diagnosed? | -- | System OK | |
