Delayed Blower Motor Control Module Installation
IMPORTANT:Before proceeding with the installation of the delayed blower motor Control module, make sure the customer is fully aware of its function and operation.
These parts are required to install the delayed blower motor control module shown.
CAUTION:
WHEN PERFORMING SERVICE ON OR AROUND SIR COMPONENTS OR SIR WIRING, FOLLOW THE CAUTIONS AND PROCEDURES IN THE APPROPRIATE YEAR SIR SERVICE MANUAL TO TEMPORARILY DISABLE THE SIR SYSTEM. FAILURE TO FOLLOW THE DISABLE PROCEDURES COULD RESULT IN POSSIBLE AIR BAG DEPLOYMENT, PERSONAL INJURY OR OTHERWISE UNNEEDED SIR SYSTEM REPAIRS.
1. Disable the SIR system. (Refer to "Disabling the SIR System" in the 1997 "SIR Service Manual.")
2. Record radio preset stations and disconnect negative battery cable.
3. Remove right and left console extension assemblies.
4. Remove HVAC module lower trim panel.
IMPORTANT:
Surface where the delayed blower motor control module is to be located is a horizontal flat space. It is close to the front of the dash, just above the carpet.
5. From passenger side of vehicle, wipe clean top center horizontal surface of heater duct.
6. Remove hook side of hook and loop retainer that is attached to delayed blower motor control module.
7. Peel backing off of hook side of hook and loop retainer and apply to top center horizontal surface of heater duct between two structure ribs. Press firmly to seat.
8. Install edge clip on electrical connector of delayed blower motor control module.
9. Using electrical tape, solid wrap delayed blower motor control module pigtail harness.
10. Cut a piece of cardboard approximately the same size as the delayed blower motor control module and place it under the loop side of the hook and loop material attached to the module.
11. From driver's side of vehicle:
11.1 Insert delayed blower motor control module, with pigtail harness end first and hook and loop retainer down, onto the top center horizontal surface of the heater duct.
11.2 Align delayed blower motor control module so that the rear edge is flush with heater duct edge on driver's side of vehicle.
11.3 Remove cardboard.
11.4 Press down on blower motor control module to engage hook and loop retainer. (Delayed blower motor control module should fit securely if engagement of hook and loop retainer has been achieved.)
12. From passenger's side of vehicle:
12.1 Route delayed blower motor control module pigtail harness between forward edge of heater duct and carpet.
12.2 Attach delayed blower motor control module pigtail harness between forward edge of heater duct and carpet.
13. Using black electrical tape, solid wrap 381 mm (15 in.) of the delayed blower motor control module jumper harness, starting at electrical connector end.
14. Connect delayed blower motor control module jumper harness with delayed blower motor control module pigtail at heater duct.
15. Route delayed blower motor control module jumper harness under front heater duct, forward of rear heater duct (if equipped), to the I/P wiring harness on the driver's side of the vehicle.
NOTICE:
To prevent any possibility of a short circuit, replace any tape that is pushed back or removed from any wiring harness that is moved.
16. Disconnect black I/P harness connector and pull into driver's side footwell.
17. Remove radio.
17.1 Depress center pins inward to release radio/HVAC control cover push pin fasteners.
IMPORTANT:
Do not push center pins through fasteners.
17.2 Remove fasteners and pull radio/HVAC control cover rearward.
17.3 Disconnect traction control-fog lamp-rear defog electrical connector, if equipped.
17.4 Remove radio screws.
17.5 Push spring clips in through D holes on both sides of radio brace.
17.6 Pull radio out slightly to access rear of radio.
17.7 Disconnect electrical connector and antenna.
17.8 Remove radio.
IMPORTANT:
For steps 18 through 23, refer to the electrical schematic.
IMPORTANT:
For information on splicing wires, refer to "Wire Splicing" instructions in this bulletin.
18. Make the following splices at the instrument panel junction block (IPJB) black 68-way connector:
18.1 At terminal A4, splice, using a salmon (pink) splice sleeve, the ORN 0.50 sq.mm (20 gage) wire from delayed blower motor control module into ORN 0.35 sq.mm (22 gage) wire (circuit 340L-battery feed) from 68-way connector.
18.2 At terminal E10, splice, using a salmon (pink) splice sleeve, the RED 0.50 sq.mm (20 gage) wire from delayed blower motor control module into BRN 0.35 sq.mm (22 gage) wire (circuit 641 A-ignition) from 68-way connector.
18.3 Connect black I/P harness connector.
Torque:
I/P Harness Connector: 2.2 N.m (20 in.lbs)
19. Splice into the high blower relay coil ignition feed wire as follows:
19.1 Disconnect HVAC fan switch (blower control switch) electrical connector from the HVAC control head.
19.2 Detach the wiring harness clip (found attached to the HVAC module) so that wiring harness can be pulled rearward to make it easier to work on the HVAC fan switch connector.
19.3 Route the TAN/ORN and BLK/ORN wires (from the delayed blower motor control module) up from the IPJB area, between the HVAC control head and the HVAC module, to the HVAC control head area.
19.4 Locate the ORN wire found in cavity A of the HVAC fan switch electrical connector that goes to the blower relay. Cut the wire approximately 51 mm (2 in.) from the HVAC fan switch connector.
19.5 Splice the in-line fuse ORN 2.0 sq.mm (14 gage) wire (P/N 21024696) to the HVAC fan switch connector side of the cut ORN 2.0 sq.mm (14 gage) wire by using a blue splice sleeve.
19.6 Splice the in-line fuse TAN 0.80 sq.mm (18 gage) wire (P/N 21024696) to the TAN/ORN 0.50 sq.mm (20 gage) wire (one of the wires routed up from the delayed blower motor control module in step 19.3), by using a salmon (pink) splice sleeve.
IMPORTANT:
When performing the following splice, make sure to double the thickness of the BLK/ORN .50 sq.mm (20 gage) wire by bending the wire in half and twisting it before inserting the wire into the splice sleeve.
19.7 Splice the BLK/ORN .50 sq.mm (20 gage) wire (one of the wires routed up from the delayed blower motor control module in step 19.3) to the harness end (that goes to the blower relay) of the ORN 2.0 sq.mm (14 gage) wire, which was cut in step 19.4, by using a blue splice sleeve. (This splice should be performed in the HVAC control head area.)
19.8 The in-line fuse will be routed to the top cover area by attaching it to the I/P harness as follows:
a. Using electrical tape, spot tape the wires to the I/P harness approximately every 51-76 mm (2-3 in.).
b. Starting at the HVAC fan switch area (blower control switch), attach the in-line fuse wires to the HVAC branch with a piece of electrical tape.
c. Follow the HVAC branch to the main branch of the I/P harness.
d. Then following the main branch, continue to spot tape the in-line fuse wires to the I/P harness until the top cover area is reached.
e. In the top cover area, tape the in-line fuse to the harness to prevent rattles.
f. Tape the splice joints and the delayed blower motor control module wires to the harness to prevent rattles and interference with the temperature/mode lever movement.
g. Attach the harness clip (detached in step 19.2) to the IIVAC module.
h. Connect the HVAC fan switch electrical connector (disconnected in step 191) to the HVAC control head.
20. Attach ring terminal lead kit (P/N 12112245) to the BLK/WHT wire from the delayed blower motor control module.
21. Attach the ring terminal to ground location at H-brace. Make sure that new ring terminal is on top of existing ring terminal.
Torque:
Ring Terminal-to-Ground: 2.2 N.m (20 in-lbs)
22. Disconnect PCM Lt. Blue 32-way connector.
23. Using a 1.5 m (5 ft.) length of 0.50 sq.mm (20 gage) wire:
23.1 At terminal J1D01 of PCM Lt. Blue 32-way connector, splice one end of 0.50 sq.mm (20 gage) wire to GRA 0.35 sq.mm (22 gage) (circuit 729-A/C relay control), using a salmon (pink) splice sleeve.
23.2 Route wire to the IPJB as follows (using electrical tape, spot tape wire to harnesses approximately every 51-76 mm [2-3 in.]).
a. Tape wire to PCM branch of I/P harness.
b. Follow harness up to I/P splice packs, forward of PCM.
c. From top of I/P, route wire along I/P harness, following the main branch across, forward of beam, and then down to IPJB. Route wire to the left of cruise control connector (if equipped).
23.3 Splice 0.50 sq.mm (20 gage) wire to WHT 0.50 sq.mm (20 gage) wire from delayed blower motor control module using a salmon (pink) splice sleeve.
23.4 Connect PCM Lt. Blue 32-way connector.
24. The BLU wire from the delayed blower motor control module is unused. Tape end of BLU wire and tape back to jumper harness of delayed blower control module. The delayed blower motor control module GRN wire is used for testing.
25. Attach top half of "Notice" label provided i~n kit to blower motor cover. Attach bottom half of "Notice" label to inside of right side console extension assembly.
26. Connect black I/P harness connector.
27. Connect negative battery cable.
Torque:
Battery Cable: 17 N.m (13 ft-lbs)
IMPORTANT:
Do not install parts that have been removed, except for black I/P harness, until correct operation of the delayed blower motor control module has been verified.
28. Proceed to "Testing the Delayed Blower Motor Control Module" and verify operation. After operation is verified, proceed to next step.
29. Install radio.
29.1 Connect electrical connector and antenna to radio.
IMPORTANT:
Make sure spring Clips are seated in D holes on both sides.
29.2 Install radio.
30. Install and tighten screws.
Torque:
Radio Mounting Screws: 2.5 N.m (22 in-lbs)
31. Connect traction control-fog lamp-rear defog electrical connector, if equipped.
32. Install radio/HVAC control cover. Push in at clip locations.
33. Install push pins and lock.
34. Install HVAC module lower trim panel.
35. Install right and left console extension assemblies.
36. Enable the SIR system. (Refer to "Enabling the SIR System" in the 1997 "SIR Service Manual.")
37. Set radio station presets.
38. Clear any SIR diagnostic trouble codes that may have set during delayed blower motor control module testing. (Refer to the 1997 "SIR Service Manual.")