Campaign - Replacing A/T Microswitch: Overview
PRODUCTCARS
GROUP
43
NO.
76
MARKET
U.S., CANADA
DATE
May, 1996
SUBJECT
Replacing microswitch in automatic transmission
900 1994-1996
REFERENCE:
TP 4301201, SECTION 4 (43), AW30-40, AW30A3, AUTOMATIC TRANS.; 960 1991-
TP 31642/1, SECTION 4 (43), AUTOMATIC TRANS. AW70/70L, AW71/71L, AW72L; 700 1982-19..
TP 3101201, SECTION 3(37), WIRING REPAIRS AND REPLACEMENT OF CABLE TERMINALS; 850, 900
Intermittant difficulties moving the shift lever out of "P" (park) position without using the manual shift lock override may be due to improper contact in the microswitch.
This campaign affects vehicles within the chassis numbers as shown.
A service kit containing a new microswitch, wiring and holder is available.
Material required:
Service kit P/N 9181179-4.
Tools required:
Wiring repair kit P/N 9814235-9
Wiring repair kit P/N 9512647-0
Preparations, 940:
- Removing panels
- Remove ashtray and housing.
- Remove screws under parking brake lever.
- Remove clips at front edge of panel.
- Remove panel.
- Remove screws in center console.
- Pull back center console.
- Undo side panel stay (B) screws (A) without removing.
- Undo right stay and twist up to left.
- Fold up carpet under right side panel to expose connectors (C).
- Undo central electrical unit (D).
Removing gear selector mounting, 940
- Remove sound insulation around gear selector mounting.
- Remove four gear selector mounting screws.
- Lift gear selector mounting as far as it will go, approx. 5 cm (2 inch).
Preparations, 960:
- Remove the ashtray.
- Remove right soundproofing panel
- Remove screw holding the center console
(A)
- Fold out soundproofing on left of center console.
- Remove screw holding the center console
(B)
- Remove cover under parking brake lever
- Remove screws holding panel
- Lift cover on center console
- Remove cover at bottom of compartment
- Remove screws holding center console
- Pull back center console to expose panel around parking brake lever and gear selector lever
- Fold back panel.
- Pull back center console to expose gear selector mounting.
All cars:
- Disconnect 4-pin connector by right side panel (940) or left side (960).
- Disconnect black wire from position 4. Use terminal removal tool 981 4229-2, (narrow pins).
- Remove insulation tape from wire harness to expose the black wire.
Removing microswitch
- Move the gear selector back to expose the micro- switch.
- Cut the wire between the microswitch and solenoid close to the microswitch as possible.
- Strip the wire.
- Carefully remove the locking clip that holds the microswitch, (BE CAREFUL NOT TO DAMAGE PLASTIC PINS).
- Remove the microswitch.
Installing a new microswitch
- Take a new microswitch from the service kit.
- Crimp the stripped wire into the moisture proof butt connector on the new microswitch. Use crimping tool 981 4223-5.
- Protecting the gear selector mounting heat the butt connector with a hot air gun to moisture proof it.
See Service Manual Section 3(37) Wiring repairs and replacement of cable terminal 850, 900, section KC.
- Install the new microswitch on the pin in the gear selector mounting.
- Install a new locking clip on the pin.
- Route the black wire from the microswitch along the existing wire harness to the 4-pin connector.
- Connect wire to position 4.
- Connect connector to the car's wire harness at the right side panel (940) or left side panel (960).
- Tape the new wire to the wire harness where the wire harness was previously taped.
960 models:
In the 960 the black wire will be too long.
- Loop the excess on the existing wire harness and tape.
Finishing work, 960
- Reinstall parts in reverse order.
- Verify function.
Finishing work, 940
Reinstall gear selector mounting with four bolts.
- Reinstall sound insulation around gear selector mounting.
- Verify function.
- Reinstall other parts in reverse order.
Volvo Cars of North America, Inc. and Volvo Canada Ltd. have determined that certain 1994 to 1996 model years 900 Series and 800 Series vehicles with automatic transmission will require replacement of the shiftlock microswitch. Approximately 115,027 vehicles in the U.S. and 10,943 vehicles in Canada may be affected.
There is a possibility that intermittent difficulties may occur getting the shift lever out of "P" (Park) position without using the manual shift lock release. This may be due to improper contact within the microswitch.
The part numbers apply as shown.
An initial allocation representing 30% of the vehicles retailed or in stock at your retail facility will be made starting on or about the week of May 6, 1996. After this one time allocation you may order additional quantities using normal ordering procedures.
Service information concerning this campaign is contained in Technical Information and Instructions Bulletin Group 43, No. 76.