A/C - Blower Volume Gradually Diminishes

HEATING & AIR CONDITIONING
AC001-03

April 15, 2003

Title:
A/C PERFORMANCE & DURABILITY IMPROVEMENT

Models
'02 - '03 Camry

TSB UPDATE NOTICE:

This TSB updates EL004-03. TSB EL004-03 is now obsolete and should be discarded.

Introduction

Some 2002 - 2003 model year Camry owners may experience a condition where the blower volume gradually decreases after about 1-1/2 hours of driving. It has been determined that, in hot high humidity conditions, the A/C system evaporator is freezing over, blocking the airflow path. There may be some instances where this condition may affect the A/C compressor and clutch assembly. An in-line thermistor resistor harness is now available to correct this concern.

Applicable Vehicles
^ 2002 - 2003 model year Camry vehicles produced before the VINs shown below.





Production Change Information





Warranty Information

Applicable Warranty*:

This repair is covered under the Toyota Comprehensive Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle's in-service date.

* Warranty application is limited to correction of a problem based upon a customer's specific complaint.





Parts Information

Repair Procedure

1. Compressor and Magnetic Clutch On-Vehicle Inspection.

A. Start the engine.

B. Inspect the compressor for a metallic rattle sound.

a. Check if there is a metallic rattle sound from the compressor when the A/C switch is on.

b. If a metallic rattle sound is heard, replace the compressor assembly. Please follow the instructions in the repair manual for compressor removal and replacement:

^ V6 engine: page 55-50

^ L4 engine: page 55-57

C. Inspect magnetic clutch condition.

a. Check the magnetic clutch for signs of overheating.

b. If there are signs of overheating, replace the magnetic clutch.

2. Install Air Conditioner Wire.





A. Remove instrument panel under cover sub-assembly No. 1, glove compartment door pad, instrument panel sub-assembly lower and heater to foot duct No. 1.





B. Remove the cooler thermistor connector from the blower unit.

NOTE:
The cooler thermistor connector is clipped into the hole on the blower unit.





C. Disconnect the connectors and install the air conditioner wire.




D. Wrap the connector with the silencer sheet.





E. Install the air conditioner wire clamp into the hole on the blower unit.





F. Tie the connector onto the body wire harness with clamp band.

G. Install the heater to foot duct No. 1, instrument panel sub-assembly lower, glove compartment door pad, and instrument panel under cover sub-assembly No. 1.