INSTRUMENTATION SERVICE MANUAL NUMBER 22
Page 4D-24 90-860074--1 FEBRUARY 2002
Transmission Fluid Temperature Switch
When the transmission is COLD or at a temperature less than as shown (refer to Testing
- Test Temperature Chart), the switch is open.
REMOVAL
1. Disconnect harness wires at switch.
2. Remove the switch and sealing washer.
72770
a
b
Typical Transmission
a-Transmission Fluid Temperature Switch with Sealing Washer
b-Harness Wires
TESTING
1. With the transmission COLD, connect one lead of an ohmmeter to one terminal of the
transmission switch. Connect the other lead of ohmmeter to other terminal.
NOTE: Switch shown removed for visual clarity only.
72771
a
b
a-Ohmmeter Leads
b-Transmission Fluid Temperature Switch
2. Switch should show no continuity. Replace switch, if continuity exists.
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