Conditions for Clearing the MIL/DTC

WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.

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.

DTC P1125

Step	Action	Values	Yes	No
Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Controls Connector End Views or Powertrain Control Module (PCM) Connector End Views
1	Did you perform the Diagnostic System Check - Engine Controls?	-	Go to Step 2	Go to Diagnostic System Check - Engine Controls
2	Record the throttle actuator control (TAC) module calibration with a scan tool. Does the TAC module calibration match the part number of the TAC module?	-	Go to Step 3	Go to Step 11
3	Observe the DTC Information with a scan tool. Is DTC P2120 or P2125 also set?	-	Go to Diagnostic Trouble Code (DTC) List	Go to Step 4
4	Turn OFF the ignition for 30 seconds. Turn ON the ignition, with the engine OFF. Observe the APP Sensors 1 and 2 parameter with a scan tool. Does the scan tool indicate that the APP sensors 1 and 2 parameters disagree?	-	Go to Step 5	Go to Intermittent Conditions
5	Turn OFF the ignition. Disconnect the accelerator pedal position (APP) sensor. Disconnect the TAC module. Measure the resistance of the following circuits for each of the APP sensors with a DMM: The low reference circuit The signal circuit The 5-volt reference circuit Is the resistance more than the specified value for any circuit?	5 ohm	Go to Step 9	Go to Step 6
6	Test the signal circuit of the APP sensor 1 for a short to the signal circuit of the APP sensor 2. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 12	Go to Step 7
7	Test for an intermittent and for a poor connection at the TAC module. Refer to Testing for Intermittent Conditions and Poor Connections andConnector Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 12	Go to Step 8
8	Test for an intermittent and for a poor connection at the APP sensor. Refer to Testing for Intermittent Conditions and Poor Connections andConnector Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 12	Go to Step 10
9	Repair the high resistance in the circuit that measured above the specified value. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 12	-
10	Replace the APP sensor. Refer to Accelerator Pedal Position (APP) Sensor Replacement . Did you complete the replacement?	-	Go to Step 12	-
11	Replace the TAC module. Refer to Throttle Actuator Control (TAC) Module Replacement . Did you complete the replacement?	-	Go to Step 12	-
12	Assemble the vehicle, as necessary. Clear the DTCs with a scan tool. Start the engine. Operate the system in order to verify the repair. Did the DTC fail this ignition?	-	Go to Step 2	Go to Step 13
13	IMPORTANT: Be aware that repairing one individual condition may correct more than one DTC. Observe the Capture Info with a scan tool.Are there any DTCs that have not been diagnosed?	-	Go to Diagnostic Trouble Code (DTC) List	System OK