Q501 4 Cylinder MT Application DTC Troubleshooting Data Version: 0.1 Date: 21-Sep-2018 Prepared By: Mithi Prasad, Sarang Kulkarni, Manish Gupta Checked By: Yogesh Jadhav Approved By: Satish Kumar P Page: 459 of 1052 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. P2118-92: Throttle Actuator "A" Control Motor Current Range/Performance: Throttle valve actuator command overload Overview: DTC Description (User Friendly) Throttle Actuator "A" Control Motor Current Range/Performance: Throttle valve actuator command overload ECU Pin Number A016, A098, A097,A008, A009 Customer Symptom MIL ON, CEL OFF Fault Effects (On Vehicle) - Lamp Status (If Any) MIL ON. MIL Turns Off as and when fault condition is not present / healed. Fault Detection Condition (Root cause) This DTC gets logged If Short Circuit over Load error is present. Normal Operating Condition If Short Circuit over Load error is not present. Probable Trouble Area Wiring harness connections between TVA Actuator and EMS ECU. Healing Condition Rectify the error Clear through diagnostic tool. Ignition OFF & ON Component Details: Throttle valve is connected to accelerator pedal. Throttle position sensor measures current position of throttle valve, based on this ems generates signal to the TVA Actuator. Signal generation for the actuator is based on TVA position sensor signal value. Preliminary Checks: 1. Check whether the customer voice / view about the issue is matching with the fault effects mentioned in above Table. If yes, go ahead with next steps. If not, check for other DTC’s presence. 2. Check whether other customers report similar complaints earlier. If yes, perform the preliminary checks with respect to earlier issue closure. 3. Check for Damage in EMS ECU connector / TVA Actuator and TVA position sensor. 4. Check for any back out of pins at EMS ECU connector / TVA Actuator and TVA position sensor. 5. Check for any damage of pins at EMS ECU connector / TVA Actuator and TVA position sensor.
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