Canada - A/C - Low Air Volume Production

Bulletin
1173

Issue Date
2003-02-17

Reference
HA-02-002

Model
Corolla, Matrix

Year Range
2003

Market
Canada

Component
HA

Subject:
LOW AIR VOLUME FROM A/C SYSTEM

Some 2003 model year Corolla and Matrix owners may experience a condition where the blower volume gradually decreases after about 1-1/2 hours of been determined that, in hot high humidity conditions, the A/C system evaporator is freezing over, blocking the airflow path. An in-line thermistor resistor now available to correct this concern.

APPLICABLE VEHICLES: 2003 model year Corolla and Matrix vehicles produced before the VINs shown below.







PRODUCTION CHANGE INFORMATION:







PARTS INFORMATION:

REPAIR PROCEDURE:







1. Access the A/C sub wire harness.
a) Remove the glove box.
b) Disconnect the connector at the upper left corner of the blower box.







2. Install the thermistor resistor harness.
a) Insert the resistor harness connector into the thermistor harness connector.
b) Insert the vehicle harness connector into the resistor harness connector.

NOTE: Please ensure that the harness is installed vertically. If the harness is installed horizontally it will interfere with the fresh/recirculate door movement.

3. Reinstall the glove box.







REPAIR TIME:

NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.