B4000 SE Cab Plus 4WD V6-4.0L OHV (1997)
4X4 Tranmission Select Switch: Testing and Inspection
1. Remove the 4x4 shift control switch and disconnect the connector from the switch.
2. Check the resistance between the terminals of the switch. Resistance:
Between terminals (A)-(D) always approximately 18 ohms.
Between terminals (B)-(C):
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2WD-approximately 3.9 kilo ohms
^
4x4 HIGH-approximately 1.1 kilo ohms
^
4x4 LOW-approximately 360 ohms
3. If not as specified, replace the 4x4 shift control switch.