C01

Water temperature sensor & Gauge (3.0L/3.5L)

C09

Transaxle range switch (3.0L/3.5L)

C11

Oil pressure switch (3.0L/3.5L)

C44-4

E/TCM (3.0L/3.5L)

C101

Water temperature sensor & Gauge (2.0L/2.5L)

C109

Transaxle range switch (2.0L/2.5L)

C111

Oil pressure switch (2.0L/2.5L)

C143-1

TCM (2.0L/2.5L)

I18-1

Instrument cluster

I18-2

Instrument cluster

I18-3

Instrument cluster

I28

Joint connector

M14

Parking brake switch (A/T)

M33-2

ETACM

M35

Joint connector

M62

Fuel sender & Fuel pump motor

M67

Sport mode & Shift limit switch

M84

Parking brake switch (M/T)

M110-3

IMS control module

I/P-B

I/P-D

I/P-H

I/P-J

I/P-K

JC01

JC101

JM09

MC01

MC03

MC101

MC103

MI01

MI02

MI03

MM01

MM02

MM14

G05

G06

Z03

Circuit Description

The operation of individual indicators & gauges is stated below. For indicators not listed below (for instance, door ajar, seat belt, etc.),see the system indicated by the circuit schematic diagrams.

Oil Pressure Indicator

Battery voltage is applied to the indicator bulb from fuse 28 with the ignition in ON or START. When the oil pressure is low, the oil pressure switch closes, providing a ground for the indicator bulb. Due to the oil pressure not present when the engine is not running, and the ignition is ON, the pressureswitch remains closed.

CHECK ENGINE Indicator

Battery voltage is applied to the indicator bulb from fuse 28 with the ignition in ON or START. The ground of the indicator is controlled by the engine control module. The control module will light the indicator when theengine is not running or when it detects a problem.

Parking Brake

With the ignition switch in ON or START, battery voltage is applied from fuse 28 to the brake warning light. When the brake is applied, the switch closes and provides a ground for the light. The brake warning light goes onto remind the driver that the parking brake is applied.

Brake Fluid Level

With the ignition switch in ON or START, battery voltage is applied from fuse 28 to the brake warning light. If the brake fluid level is low, the brake fluid level switch closes and ground is provided to the circuit. The brake warning light lights to warn the driver of low brake fluid level in the brake master cylinder. (Note : Check brake pad wear before addingfluid.)

Speedometer

With the ignition switch in ON and START, the speedometer drive circuit receives pulses from the vehicle speed sensor. The pulse rate increases as the car accelerates. The frequency and duration of these input pulses aremeasured and displayed by the speedometer.

Tachometer

The tachometer displays engine speed in rpm. Voltage pulses are taken from the ignition system and sent to the tachometer by the ECM. The tachometer responds to the frequency of the voltage pulses, which vary according to enginespeed.

Fuel Gauge

The pointer of the fuel gauge is moved by the magnetic fields of two coils. The coils are at right angles to each other. Battery voltage is applied to the coils through fuse 28, generating the magnetic fields. The magnetic fields, controlled by the fuel gauge sender, causes the gauge needle to move. As the resistance in the sender varies, current through the gauge coils changes.

Water Temperature Gauge

The pointer of the water temperature gauge is moved by the magnetic fields of two coils. The coils are at right angles to each other. Battery voltage is applied to the coils through fuse 28, generating the magnetic fields. The magnetic fields, controlled by the water temperature sensor & gauge, cause the gauge needle to move. As the resistance, current through the gaugecoils changes.