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Suzuki A/T Transmission Control Module & 4WD Switch Wiring Diagram
Wiring diagram of the 4WD circuit showing the 4WD switch, combination meter indicators and transmission control module connections.
This scanned wiring diagram page shows the circuit for the Transmission Control Module (A/T) indicator and 4WD switch wiring on a Suzuki vehicle. Power originates at fuse position 18 (15 amp) in the fuse box, feeding a Black/White (B/W) wire through connectors E38/G05 (pin 8) and G11 (pin 9) to the combination meter, which contains the 4WD indicator lamp and P/N indicator lamp. From the meter, an Orange/Black (O/B) wire runs through connectors G09, G06/E37 (pin 10), E54/C10, C08/P01, and P03 to the 4WD switch (OFF/ON), which grounds through Black (B) wires to chassis grounds 9 and 10. White/Green (W/G) and White/Black (W/B) wires run from the meter through G05/E38 to pins 8 and 20 of the Transmission Control Module (A/T) at connector E43. TCM outputs include pin 7 (Blue wire, Bl) to connector E32/F01, pin 18 (Blue/Orange, Bl/O) to the Monitor Connector (Engine, RWAL & A/T), and pin 24 (Black/Blue, B/Bl) to ground point 3. A legend distinguishes connector pin assignments between IWATA and CAMI production plants. The page is useful for tracing 4WD indicator, P/N indicator, and automatic transmission control module wiring.
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Frequently asked questions
- What fuse powers the combination meter 4WD and P/N indicator circuit in this diagram?
- Fuse position 18 in the fuse box, rated 15A, feeding a Black/White (B/W) wire to the combination meter.
- Which Transmission Control Module (A/T) connector pins are shown?
- Connector E43 pins 8 and 20 (inputs via W/G and W/B wires from the combination meter) and pins 7 (Bl to E32/F01), 18 (Bl/O to the monitor connector), and 24 (B/Bl to ground).
- What wire color connects the 4WD switch to the combination meter?
- An Orange/Black (O/B) wire runs from the combination meter through connectors G09, G06/E37, E54/C10, C08/P01, and P03 to the 4WD switch, which grounds through Black (B) wires.
- What do the [1] and [2] symbols in the diagram mean?
- They indicate different connector pin numbers by production plant: [1] = IWATA, [2] = CAMI.
- Where does TCM pin 18 (Bl/O wire) go?
- To the Monitor Connector for Engine, RWAL & A/T diagnostics.
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