NANO

ENGINE 273 MPFI

271

ENGINE

INTAKE AIR CONTROL VALVE (IACV) / ISC

VALVE

Pin Details

Signal

Connector

ECU

Pin No.

Stepper DriverA

Stepper Driver B

Stepper Driver C

Stepper Driver D

Pin Configuration

Stand Alone Diagnosis

Insulation Resistance between the pins >100MOhm

Inductivity (at 25 °C) 38 Mh +/- 15%

SystemDiagnosis

•

Use TATAdiagnostic Tool.

Location

This actuator is part of integral throttle body which is

fitted on intake manifold upstream side. Preferred ori-

entation of shaft is horizontal in direction of the crank-

shaft.

The maximum tightening torque of fixing screws is 10

Nm.

Working Principle

Intake air control valve is the part of the mechanical

throttle body. This valve allows accurate flow control

by varying flow cross section area. This is done by

moving the spindle in both open/close directions op-

erated by a stepper motor.

Installation Details

Preferred orientation of shaft is horizontal in direction

of the crankshaft.

The maximum tightening torque of fixing screws is 4

to 5 Nm.

Storage Conditions

Storage Temperature

-40 °C to 130 °C

Maximum Storage Time

3 Years

Operating Temperature range -30 °C to 120 °C