S15/T15 Jimmy 2WD L4-119 1.9L VIN A 2-BBL (1983)
The following procedure may be used in diagnosing the oil pressure switches:
OIL PRESSURE SWITCH CHECKING PROCEDURE
TOOLS REQUIRED:
AIR LINE ADJUSTABLE TO 60 PSI BATTERY POWERED TEST LIGHT
Switch Type
Part No.
Step:
Action
Result
Single Terminal
8642473
1: Connect test light leads
1: Light off
Normally open
Silver
to the terminal and switch
Housing
body; air pressure < 10 psi
2: Apply air pressure to the
2: Light on
switch; air pressure > 30 psi
Single Terminal
8634475
1: Connect test light leads
1: Light on
Normally closed
8642569
to the terminal and switch
Black
body; air pressure < 30 psi
Housing
2: Apply air pressure to the
2: Light off
switch; air pressure > 55 psi
Double Terminal
8643710
1: Connect the test light
1: Light off
Normally open
Silver
leads to the switch
Housing
terminals; air pressure < 10 psi
2: Apply air pressure to the
2: Light on
switch; air pressure > 30 psi
Double Terminal
8642346
1: Connect the test light
1: Light on
Normally closed
Black
leads to the switch
Housing
terminals; air pressure < 7 psi
2: Apply air; pressure to the
2: Light off
switch; air pressure > 14 psi
Provided below is a chart that shows specific switches required for the various types of transmission usages. Refer to your service manual for wiring
diagrams of each vehicle type if needed.
VEHICLE TYPE AND SWITCHES REQUIRED
Type
TCC SIG SW
3RD CL SW
4-3 DS SW
4TH CL SW
1
8642473
8643710
8642346
8643710
2
Plug
Plug
8642346
8643710
3
Plug
Plug
8642346
Plug
4
Plug
Plug
8642346
8634475 (8642569)
5
8642473
8643710
8642346
8642473
6
Plug
Plug
Plug
Plug
7
8642473
Plug
Plug
8643710
8
Plug
Plug
Plug
8643710
9
Plug
Plug
Plug
8634475 (8642569)
10
Plug
Plug
8642346
8642473
