A/C - Blower Motor Only Operates On High
T-SB-0149-11October 5, 2011
HVAC Blower Motor Only Operates On High
Service Category
Vehicle Interior
Section
Heating/Air Conditioning
Market
USA
Applicability
Introduction
Some Tacoma vehicles may experience a condition where the blower motor only operates on High and all other blower speeds are inoperative. The blower motor resistor and resistor connector have been updated to address this condition.
Production Change Information
This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown.
Parts Information
Required Tools & Equipment
Required Materials
Warranty Information
Repair Procedure
1. Verify the blower motor only operates on High.
If the blower motor operates on any speed other than High and the connector is NOT discolored this TSB does NOT apply.
2. Disconnect the negative battery cable.
3. Disconnect the blower motor resistor connector and remove the blower motor resistor.
4. Cut the old connector from the Harness.
A. Use the new wire lead as a guide for proper length.
5. Strip insulation from wire on the harness and replacement terminal lead.
Start stripping at least 8 mm (0.31 in.) to 11 mm (0.43 in.) away from the end of the existing harness at vehicle side and also from the end of the repair wire.
6. Use the sleeve (P/N 82999-12030) to join the connector pigtail to the wire harness.
NOTE
Part Number 82999-12030 is designed to fit with an outside diameter of 3.0 - 5.0 mm.
7. Crimp the replacement terminal lead to the harness lead.
A. Overlap the two stripped wire ends inside the sleeve as shown.
B. The crimping tool (AMP471OO-1) with the yellow mark. Place the sleeve in the correct section of the tool according to the color of the sleeve itself.
C. With the center of the sleeve correctly placed between the crimping jaws squeeze the crimping tool until this sleeve has been fully crimped.
D. Pull the joined wires to either end. Make sure that they are joined firmly by the sleeve.
E. Crimp both ends of the sleeve with the crimping tool at the "INS" position.
8. Protect joined section by wrapping electrical tape around the joints to protect them from moisture.
HINT
^ Before starting the operation, thoroughly wipe dirt and grease off the sections to be joined.
^ Do not let oil and dust, etc. get on the tape surface.
A. Stretch the electrical tape until its width is reduced by half.
B. Starting approximately 10 mm (0.39 in.) from the end of the sleeve wrap the electrical tape around the sleeve three or more times while stretching the tape.
C. When wrapping the sleeve with electrical tape overlap each wrap half the width of the tape.
D. Firmly wrap the tape two times or more about 10 mm (0.39 in.) from the other end of the sleeve then wrap the tape back towards the start again and firmly finish winding the tape around the center of the sleeve.
9. Install the blower motor resistor and connect the new connector.
Torque: 2.0 N*m (20 kgf*cm, 18 in*lbf)
10. Connect the negative battery cable.
11. Verify the blower motor operates on all speeds.