ELECTRICAL COMPONENT LOCATOR

�1993 Nissan Sentra

1993 ELECTRICAL COMPONENT LOCATION Nissan Electrical Components

Sentra

SAFETY PRECAUTION

WARNING: When working on vehicles equipped with Supplemental Restraint System (SRS), never apply electrical voltage to the system. This could cause the SRS (air bag) to be deployed. For complete Air Bag Safety precautions refer to AIR BAG RESTRAINT SYSTEM article in ACCESSORIES/SAFETY EQUIPMENT Section.

BUZZERS, RELAYS & TIMERS

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Component Component Location

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ABS Relays

Motor Relay (Metal Body)	On bracket, on right strut
	tower.
Solenoid Valve Relay (Lt. Blue)	On bracket, on right strut
	tower.

Accessory Relay In passenger compartment fuse/relay block.

A/C Relay In relay block, on battery tray bracket.

ASCD Hold Relay Behind left side of dash.

Clutch Relay (M/T)	In relay block, on battery
	tray bracket.
Daytime Running Light Relay	In relay block, on right inner
	fender panel.

ECCS Relay Under center of dash, on top of ECM (ECCS) control module.

Fuel Pump Relay In relay block, on battery tray bracket.

1.6L Canada In relay block, on right inner fender panel.

1.6L USA In relay block, on right inner fender panel.

No. 1 & 2 In passenger compartment fuse/relay block.

No. 3 (Without Sun Roof) Behind right kick panel.

Inhibitor Relay (A/T)	In relay block, on battery
	tray bracket.
Radiator Fan Relays

Main & Sub (1.6L & 2.0L M/T) In relay block, on battery tray bracket.

No. 1 & No. 2 (2.0L A/T) In relay block, on battery tray bracket.

No. 3 (2.0L A/T) In relay block, on battery tray bracket.

Rear Window Defogger Relay In passenger compartment fuse/relay block.

Sun Roof Relay Behind right kick panel.

Turn Signal/Hazard Flasher Unit	Behind left side of dash,
	right of steering column.
CIRCUIT PROTECTION DEVICES

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Component Component Location

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Fuse/Relay Block Engine Compartment On left front of inner fender panel, behind battery.

Passenger Compartment Under left side of dash.

Fusible Links In engine compartment fuse/relay block.

Relay Blocks On right side inner fender panel & on bracket near

battery.

CONTROL UNITS

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Component Component Location

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ABS Control Unit Under right side of dash.

ASCD Control Unit Behind left side of dash.

A/T Control Unit Behind left kick panel.

Automatic Seat Belt Control Unit Under center of rear package tray.

Daytime Running Light Control Unit Behind left kick panel.

ECM (ECCS) Control Module Under center of dash.

Shift Lock Control Unit (A/T) Behind left side of dash, above clutch pedal.

SRS Control Unit Under center of dash.

Time Control Unit Behind left side of dash.

MOTORS

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Component Component Location

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ABS Actuator	On right side of engine
	compartment, near strut tower.
A/C Condenser Fan Motor	On A/C condenser, on right
	front corner of engine
	compartment.
A/C-Heater Blower Motor	Under right side of dash.
Fuel Pump	Inside fuel tank.
Radiator Fan Motor	On radiator, on left front
	corner of engine compartment.
Wiper Motor	On right side of firewall.

SENDING UNITS & SENSORS

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Component Component Location

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ABS Wheel Sensors On each wheel hub assembly.

Coolant Temperature Sensor	On front side of engine,
	above oil filter.
Crankshaft Position Sensor

1.6L Inside distributor.

2.0L Inside distributor.

Detonation/Knock Sensor On top right of engine block.

EGR Temperature Sensor (Calif.)	Near EGR valve base.
Fuel Gauge Sending Unit	In fuel tank.
Mass Airflow Sensor

1.6L Near air filter housing assembly.

2.0L	Near air filter housing
	assembly.
Speed Sensor (Digital Speedometer)	On transaxle.

Tunnel & Safing Sensor	Under floor console, behind
	gear selector.
Throttle Position Sensor

1.6L On throttle body assembly.

2.0L	On throttle body assembly.
Vehicle Speed Sensor	On speedometer assembly.
SOLENOIDS & SOLENOID VALVES

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Component Component Location

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Auxiliary Air Control (AAC) Valve

1.6L On right front of engine, on intake runner.

2.0L On right front of engine, on intake runner.

EGR & Canister Control
Sol. Valve	On right rear of engine, near
	EGR control valve.
FICD Solenoid Valve

1.6L On right front of engine, on intake runner.

2.0L	On right front of engine, on
	intake runner.
Key Lock Solenoid	Integral of ignition key lock
	assembly.
O/D Cancel Solenoid (A/T)	In transaxle valve body
	assembly.
Pulsed Secondary Air Injection

(PAIR) Control Solenoid Valve On right center of engine, near EGR control valve.

Shift Lock Solenoid (A/T) Under floor console, at base of gear selector.

TTC Solenoid (A/T) In transaxle valve body assembly.

Valve Timing Control (VTC)

Solenoid Valve On right front of cylinder head.

SWITCHES

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Component Component Location

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A/C Dual-Pressure Switch On top of receiver-drier, near battery.

ASCD Cancel Switch	On bracket, above brake
	pedal.
Back-Up Light/Neutral Switch (M/T)	On right side of transaxle.

Brake/Stoplight Switch On bracket, above brake pedal.

Clutch Switch

Ignition Key Switch Inhibitor Switch (A/T) Oil Pressure Switch Parking Brake Switch Power Steering Pressure Switch Shift Control Detention Switch Throttle Position Switch

On bracket, above clutch pedal.

On ignition switch assembly.

On side of transaxle, linked to control cable.

On right front side of engine block, near oil filter.

At base of parking brake lever.

On power steering high pressure line.

Under floor console, at base of gear selector.

On throttle body, part of throttle position sensor.

MISCELLANEOUS

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Component Component Location

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A/C Thermo Control Amplifier	Under right side of dash, on
	front of cooling unit.
Blower Motor Resistor	Under right side of dash, on
	blower motor housing.
Data Link Connector (CONSULT Tester)	Under left side of dash, below
	fuse block.
Power Transistor

1.6L On bracket, near throttle linkage.

2.0L On bracket, near throttle linkage.

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