Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1990RANGER 4WD L4-140 2.3L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSELECTRIC SHIFT MODULE WIRING SCHEMATIC - CORRECTION
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Electric Shift Module Wiring Schematic - Correction
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Electric Shift Module Wiring Schematic - Correction
Article No.
91-3-11
02/02/91
0GTRANSFER CASE - 4X4 ELECTRIC SHIFT MODULE - EVTM WIRING CORRECTIONS
LIGHT TRUCK:
1989-90 BRONCO II
1989-91 RANGER
1991 EXPLORER
ISSUE:
Some of the wiring schematics shown in the EVTMs contain errors which make circuit tracing difficult. A complete update of these schematics will be made in the near future.
ACTION:
In the interim, refer to the simplified schematic, Figure 1. It shows the electrical circuitry for the transfer case shift mechanism while deleting connectors and interconnects with other circuits for clarity.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 203200, 290000, 508000, 590000
91-3-11
02/02/91
0GTRANSFER CASE - 4X4 ELECTRIC SHIFT MODULE - EVTM WIRING CORRECTIONS
LIGHT TRUCK:
1989-90 BRONCO II
1989-91 RANGER
1991 EXPLORER
ISSUE:
Some of the wiring schematics shown in the EVTMs contain errors which make circuit tracing difficult. A complete update of these schematics will be made in the near future.
Figure 1:
ACTION:
In the interim, refer to the simplified schematic, Figure 1. It shows the electrical circuitry for the transfer case shift mechanism while deleting connectors and interconnects with other circuits for clarity.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 203200, 290000, 508000, 590000
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.