B4000 Regular Cab 4WD V6-4.0L OHV (1997)
Check FWD/RWD motor.
1. Check for open or short in Y/W and R/W wires in wire harness between seat control switch and FWD/RWD motor.
2. Is open or short present?
Step 12
Check left horizontal motor reverse.
1. Depress the entire seat button to the REARWARD position.
2. Check continuity between B/W and Y/W wires and B and R/W wires of seat control switch.
3. Is continuity present?