Automatic transmission wiring diagram for Suzuki Grand Vitara
1. Automatic transmission connector
* Black-green: +12V ignition power supply
*Brown: Ground
* Black and white: Vehicle speed sensor output
*Blue-Red: Torque Converter Lockup Solenoid Control
* Blue-yellow: Gear shift control (up)
*Red-White: Gear Shift Control (Down)
2. Gear selector lever connector
*Orange: P
*Light green: R
* Green: N
*Yellow: D
* Blue: 2
3. Start inhibitor connector
* Red: Power +12 V
* Green: Ground
4. Throttle Position Sensor (TPS) Connector
* Black and white: Throttle position signal
5. Crankshaft position (CKP) sensor connector
*Red-white: Crankshaft position signal
6. Transmission control module (TCM) connector
*White: CAN H
*Black: CAN L
* Black-red: +12V power supply from battery
*Black: Ground
*Yellow-green: Engine start
*Orange-white: Engine RPM output
7. Engine control unit (ECU) connector
* Black-yellow: +12 V power supply after ignition is turned on
* Black-blue: Engine start
* Black and white: Engine RPM output
8. Starter relay connector
* Red-black: +12 V power supply after ignition is turned on
9. Vehicle Speed Sensor (VSS) Connector
*Red-Blue: Vehicle speed signal output
10. Instrument panel connector
* Black-green: Gear position indicator (P, R, N, D, 2)
*Black-Red: Torque Converter Lockup Indicator
Note: Wire colors may vary depending on vehicle year and model. Always check your specific vehicle’s service manual before performing any electrical work.