Installing Control Module/Cables/740/940 W/MCC 1991-95
Installing control module and cablesC1
740/940 with ECC model year 1991-95
Preparations
- Clean evaporator according to Service Manual:
Section 8(87)
Climate control
700/900 1982-
Section Y
- Make note of radio code if anti-theft coded radio installed.
Remove:
- Disconnect negative battery lead.
- Sound insulation on passenger side.
- Glove compartment.
- Cowl on passenger side.
Refer to Service Manual:
Section 3(35-39) Lighting,
(see group 37) Instrumentation and other electrical equipment
700/900 1982-
Section 8(82-86, 88) Interior, exterior 700/900 1982-
Cable connections
C2
Installing new relay on cable harness
- Take out cable harness (P/N 9148757) supplied with kit.
- Install relay supplied in the 5-pin connector.
C3
Route cables to engine compartment
- Route cables without housing receptacles to engine compartment through unused cutout in grommet below suspension strut brace.
- Install round housing receptacles supplied with cable harness on the cables in the engine compartment.
- Separate existing connectors on the cable between the A/C compressor and the receiver/drier.
- Connect cables from the new cable harness to the separated connectors.
C4
Location of cable sheath opening
The cable sheath is cut to drain off condensation.
- The cut conduit section should be placed at the lowest point along the route of the cable.
- Use butyl tape to seal the grommet.
- Use existing cable tie to clamp cables to firewall.
C5
Connecting cable harness to heater
- Disconnect the yellow connector from the heater and attach the yellow connector from the cable harness.
- Install the detached connector in the other cable harness yellow connector.
Installing control module from kit
C6
Connecting and mounting control module in cars without SRS (Airbag) and knee bolster
- Connect control module and cable harness connectors.
- Apply three strips of butyl tape to the control module.
- Install control module to dashboard side section with butyl tape.
C7
Connecting and mounting control module in cars with SRS (Airbag) and knee bolster
- Install control module on front of air hose under glove compartment with butyl tape and cable ties round duct and control module as illustrated.
- Attach cable harness to existing cable harness at side of SAS (Airbag) module with 2 cable ties, one as near to the connector as possible to avoid vibration on uneven road surfaces.
C8
Fastening cables In cars without SRS (Airbag) and knee bolster
- Attach cable harness to existing cable harness with 2 cable ties, one as near to the connector as possible to avoid vibration on uneven road surfaces.
C9
Connection to ground plate
- Connect the black-white cable included in the new cable harness to the ground plate on the right side of the cowl.
The ground plate is located behind the fuel control module.
C10
Cable harness connections
- Locate connector on cable harness between heater and dashboard (on side of centre console). Separate connector and connect new and old connectors for each model year:
1991 model year:
- Connect 4-pin connectors, which have 3 cables and are included in the kit cable harness, to existing connectors.
92-94 model year (shown here):
- Connect 2-pin connectors, with 1 cable included in the kit cable harness, to existing connectors.
- Connect connectors not connected to existing cable harness, to each other.
Function verification and information
C11
Check airing cycle is working
- Connect battery lead and start car.
- Turn on A/C system to start compressor.
The A/C system starts if the temperature exceeds approx. 7°C (45°F).
- Make up a cable (about 2 meters (6 ft.) in length) to connect battery positive terminal to control module connector. Connect to green cable, connector terminal 6, for at least 30 seconds while compressor is operating.
- Turn off engine.
Airing cycle should begin after approximately 10 seconds and continue for approximately 1 second.
- Remove cable between connector and battery.
C12
Finishing off
- Replace all parts removed.
- Reset the clock and enter the anti-theft radio code if required.
C13
Information to Car Owner
- Carry out operations at the end of this service bulletin.