Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 151 of 610 Copyright by TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without our consent P0222-12: Throttle/Pedal Position Sensor/Switch "A" Circuit Low Overview: Code Cause Effect on Vehicle Fault Code: P0222-12 MIL- Off CEL – On Immo Lamp – NA Message on IC - NA 1. Accelerator pedal stuck 2. APP (Accelerator pedal position) Module is defective/sensor defective 3. Wiring harness short circuit 4. Connector loose/not connected Accelerator pedal will not respond properly Performance deterioration on vehicle/Limp home mode is active. Component Details: The accelerator-pedal module (APM) consists of the accelerator pedal and an angular-position sensor. This sensor registers the movement and position of the accelerator pedal. From this information, the engine management calculates the required torque. Checkpoints: 1. Check Accelerator pedal sensor connection 2. Check wiring harness for continuity 3. Check ECU connection Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check whether the accelerator pedal is free to move. If the pedal is jammed replace the Pedal module and recheck Not stuck Step 2 Check the brake switch setting. If the problem is with the setting perform the necessary repairs. Proper connections Step 3 Check ECU Connection: 1] Key off. 2] Remove the ECU Connector. 3] Connect ECU connector Properly. 4] Key on and Read the faults Step 4 Check wiring harness for continuity open/ short circuit between APP (accelerator pedal position module) module connector pins to ECU pins Electrical continuity: zero ohms in Multi-meter Step 5 Check for any damage on APP module connector pins and ECU connector pins Step 6 If problem still persists. Replace accelerator pedal Step 7 If the problem still persists. Replace the Brake switch Step 8 If the problem still persists. Replace The ECU. Circuit Schematic Diagram: Component Location and Image:
RkJQdWJsaXNoZXIy MTIwNTUz