Problem Symptoms Table

Total OBD & ECU Auto Diagnostics

TOAD OBD Scanner

Get Instant Access

HINT:

Use the table below to help determine the causes of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Air conditioning system

Symptom

Suspected area

See page

No functions of A/C system operate

A/C Fuse

-

Wire harness or connector

-

Air conditioning amplifier

AC-16

Airflow Control: blower motor does not operate

HTR, GAUGE Fuse

-

Blower motor circuit

AC-43

Wire harness or connector

-

Airflow Control: blower motor does not change speed

Blower resistor

AC-203

Blower motor

AC-200

Heater control (for Hatchback)

AC-254

Heater control (for Sedan)

AC-243

Temperature Control: No cool air comes out

Refrigerant volume

AC-62

Refrigerant pressure

AC-62

Heater control base (for Hatchback)

AC-253

Heater control base (for Sedan)

AC-242

Air conditioning pressure sensor

AC-230

Compressor and pulley

AC-207

Expansion valve

-

Air conditioning amplifier

AC-16

ECM

ES-26

CAN communication

CA-9

Compressor and pulley do not operate

A/C Fuse

-

Refrigerant pressure

AC-62

Compressor and pulley

AC-207

Air conditioning pressure sensor

AC-230

Evaporator temperature sensor (for Hatchback)

AC-137

Evaporator temperature sensor (for Sedan)

AC-96

Air conditioning amplifier

AC-16

ECM

ES-26

CAN communication

CA-9

Was this article helpful?

0 0
Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment