Workshop Manuals Factory service & repair Land Rover
01 02 WORKSHOP MANUAL SUPPLEMENT03 04 CONTENTS05 06 CONTENTS07 INFORMATION08 09 INTRODUCTION10 GENERAL SPECIFICATION DATA11 ENGINE TUNING DATA12 GENERAL FITTING REMINDERS13 MAINTENANCE14 ENGINE15 EMISSION CONTROL16 ENGINE MANAGEMENT SYSTEM17 FUEL SYSTEM18 COOLING SYSTEM19 MANIFOLD AND EXHAUST SYSTEM20 CLUTCH21 MANUAL GEARBOX22 TRANSFER GEARBOX23 PROPELLER SHAFTS24 STEERING25 FRONT SUSPENSION26 REAR SUSPENSION27 BRAKES28 CHASSIS AND BODY29 PANEL REPAIRS30 AIR CONDITIONING31 WIPERS AND WASHERS32 ELECTRICAL33 INSTRUMENTS
Land Rover TD5 Defender16 · ENGINE MANAGEMENT SYSTEM
16 · Engine

SENSOR - THROTTLE POSITION (TP) UP TO VIN 607224

Make
Land Rover
Model
Defender TD5 Defender
Section
SENSOR - THROTTLE POSITION (TP) UP TO VIN 607224
ENGINE MANAGEMENT SYSTEMSENSOR - THROTTLE POSITION (TP) UP TO VIN 607224
SENSOR - THROTTLE POSITION (TP) UP TO VIN 607224 – Land Rover TD5 Defender

18

ENGINE MANAGEMENT SYSTEM

14

DESCRIPTION AND OPERATION

SENSOR - THROTTLE POSITION (TP)
UP TO VIN 607224

The TP sensor is located on the throttle pedal assembly. It detects throttle pedal movement and position. It uses
two position sensors to provide the ECM with the exact throttle pedal position. As the pedal operates, the voltage
of one position sensor increases as the other decreases.

Input / Output
The ECM (C0658-14) provides a 5 volt reference feed to both sensors (C0787-B & C0787-J) on white/purple wires
via header 291. The signal output from sensor 1 (C0787-F) is connected to the ECM (C0658-12) by a white/green
wire. Signal output from sensor 2 (C787-K) is connected to the ECM (C0658-36) by a white/slate wire. An earth
path is provided for both sensors (C0787-B & C0787-G) on black/yellow wires via the ECM (C0658-26)

The TP sensor can fail or supply an incorrect signal if one or more of the following occurs:

•

Sensor open circuit.

•

Short circuit to vehicle supply.

•

Short circuit to vehicle earth.

•

Water ingress.

•

Sensor incorrectly fitted.

In the event of a TP sensor signal failure, any of the following symptoms may be observed:

•

Engine performance concern.

•

Delayed throttle response.

•

Failure of emission control.

If the TP sensor fails, the engine will only run at idle speed until the fault is eliminated.

Parts & tools for this job For Land Rover Defender

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