Acura RSX Honda Integra. Manual — part 73

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YES

NO

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NO

10-18

10-18

Fan Controls

Radiator Fan Switch Circuit
Troubleshooting (Open)

Radiator Fan Switch Circuit
Troubleshooting (Short)

RADIATOR FAN SWITCH 2P
CONNECTOR

GRN/WHT

BLK

RADIATOR FAN SWITCH 2P
CONNECTOR

RADIATOR FAN SWITCH
2P CONNECTOR

GRN/WHT

1. Disconnect the radiator fan switch 2P connector.

2. Turn the ignition switch ON (II).

3. Measure voltage between radiator fan switch 2P

connector terminal No. 2 and body ground.

Go to step 4.

Repair an open in the wire between radiator

fan switch 2P connector terminal No. 2 and under-
hood fuse/relay box.

4. Turn the ignition switch OFF, and check for

continuity between radiator fan switch 2P
connector terminal No. 1 and body ground.

Replace the radiator fan switch.

Repair an open in the wire between radiator

fan switch 2P connector terminal No. 1 and body
ground. If the wire is OK, check for a poor ground at
G302.

1. Remove the radiator fan relay from the under-hood

fuse/relay box, and test it (see page 22-62).

Go to step 2.

Replace the radiator fan relay.

2. Remove the radiator fan switch, and test it

(see page 10-19).

Go to step 3.

Replace the radiator fan switch.

3. Disconnect ECM/PCM connector B (24P) and the

under-hood fuse relay box 14P connector.

4. Check for continuity between radiator fan switch 2P

connector terminal No. 2 and body ground.

Repair a short in the wire between radiator

fan switch 2P connector terminal No. 2 and under-
hood fuse/relay box.

Replace the under-hood fuse/relay box.

Wire side of
female terminals

Wire side of
female terminals

Wire side of
female terminals

Is ther e batter y voltage?

Is ther e continuity?

Is the r elay OK ?

Is the r adiator f an switch OK ?

Is ther e continuity?

05/06/27 18:07:06 61S6M040_100_0018

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10-19

10-19

Radiator Fan Switch Test

Radiator Fan Switch Replacement

B

1

2

A

Terminal

Operation

SWITCH

ON

OFF

Temperature

196

203 °F

(91

95 °C)

5

15 °F (3

8 °C) lower

than the temperature
when it goes on

1

2

A
24 N·m (2.4 kgf·m, 17 lbf·ft)

B

1. Remove the radiator fan switch from the radiator

(see page 10-19).

2. Suspend the radiator fan switch (A) in a container

of water as shown.

3. Heat the water, and check the temperature with a

thermometer. Do not let the thermometer (B) touch
the bottom of the hot container.

4. Measure the continuity between terminal No. 1 and

terminal No. 2 according to the table.

5. Replace, if necessary, and install the radiator fan

switch (see page 10-19).

1. Drain the engine coolant (see page 10-6).

2. Disconnect the radiator fan switch connector, then

remove the radiator fan switch (A).

3. Install the radiator fan switch with a new O-ring (B).

4. Fill the reserve tank and radiator with engine

coolant, and bleed the air from the cooling system
with the heater valve open (see step 7 on page
10-7).

05/06/27 18:07:07 61S6M040_100_0019

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05/06/27 18:07:07 61S6M040_100_0020

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Fuel and Emissions

Fuel and Emissions Systems

PGM-FI System

VTEC/VTC

Idle Control System

Fuel Supply System

Intake Air System

Catalytic Converter System

PCV System

EVAP System

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Special Tools

. 11-2

General Troubleshooting Information

. 11-3

DTC Troubleshooting Index

. 11-9

Symptom Troubleshooting Index

. 11-16

System Description

. 11-20

How to Set Readiness Codes

. 11-90

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Component Location Index

. 11-94

DTC Troubleshooting

. 11-98

MIL Circuit Troubleshooting

. 11-248

DLC Circuit Troubleshooting

. 11-273

Injector Replacement

. 11-277

A/F Sensor Replacement

. 11-279

Secondary HO2S Replacement

. 11-279

CKP Sensor Replacement

. 11-280

ECT Sensor Replacement

. 11-280

CMP Sensor B Replacement

. 11-281

IAT Sensor Replacement

. 11-281

Knock Sensor Replacement

. 11-282

Output Shaft (Countershaft) Speed Sensor

Replacement

. 11-283

ECM/PCM Replacement

. 11-284

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Component Location Index

. 11-285

DTC Troubleshooting

. 11-286

VTC Oil Control Solenoid Valve

Removal/Test/Installation

. 11-321

CMP Sensor A Replacement

. 11-323

Rocker Arm Oil Control Solenoid

(VTEC Solenoid Valve) Inspection

. 11-323

Rocker Arm Oil Control Solenoid

(VTEC Solenoid Valve) Assembly
Removal/Installation

. 11-324

Rocker Arm Oil Pressure Switch

(VTEC Oil Pressure Switch)
Removal/Installation

. 11-324

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Component Location Index

. 11-325

DTC Troubleshooting

. 11-326

A/C Signal Circuit Troubleshooting

. 11-337

Alternator FR Signal Circuit

Troubleshooting

. 11-339

PSP Switch Signal Circuit

Troubleshooting

. 11-342

Brake Pedal Position Switch Signal

Circuit Troubleshooting

. 11-346

Idle Speed Inspection

. 11-348

ECM/PCM Idle Learn Procedure

. 11-349

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Component Location Index

. 11-350

Fuel Pump Circuit Troubleshooting

. 11-353

Fuel Pressure Relieving

. 11-360

Fuel Pressure Test

. 11-363

Fuel Tank Draining

. 11-364

Fuel Line Inspection

. 11-365

Fuel Line/Quick-Connect Fitting

Precautions

. 11-368

Fuel Line/Quick-Connect Fitting

Removal

. 11-369

Fuel Line/Quick-Connect Fitting

Installation

. 11-370

Fuel Pressure Regulator Replacement

. 11-373

Fuel Filter Replacement

. 11-374

Fuel Pump/Fuel Gauge Sending Unit

Replacement

. 11-375

Fuel Tank Replacement

. 11-377

Fuel Gauge Sending Unit Test

. 11-379

Low Fuel Indicator Test

. 11-382

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Component Location Index

. 11-383

DTC Troubleshooting

. 11-384

Throttle Body Test

. 11-403

Throttle Body Cleaning

. 11-403

Throttle Position Sensor Signal

Inspection

. 11-404

Intake Air Bypass Control Thermal Valve

Test

. 11-405

Intake Air Bypass Control Thermal Valve

Replacement

. 11-406

Air Cleaner Removal/Installation

. 11-407

Air Cleaner Element

Inspection/Replacement

. 11-407

Throttle Cable Adjustment

. 11-408

Throttle Cable Removal/Installation

. 11-409

Throttle Body Removal/Installation

. 11-410

Throttle Body Disassembly/Reassembly

. 11-412

IMT (IMRC) Valve Position Sensor

Replacement

. 11-413

IMT (IMRC) Valve Replacement

. 11-413

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DTC Troubleshooting

. 11-414

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DTC Troubleshooting

. 11-417

PCV Valve Inspection

. 11-419

PCV Valve Replacement

. 11-419

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Component Location Index

. 11-420

DTC Troubleshooting

. 11-422

EVAP Two Way Valve Test

. 11-468

Fuel Tank Vapor Control Valve Test

. 11-469

Fuel Tank Vapor Control Valve

Replacement

. 11-471

EVAP Canister Replacement

. 11-472

FTP Sensor Replacement

. 11-473

EVAP Canister Vent Shut Valve

Replacement

. 11-474

05/06/27 17:29:28 61S6M040_110_0001