DETECTED CONDITION | POSSIBLE CAUSE |
Fuel injector voltage is 1.3 V and less. | • Injector circuit open or short. • Injector malfunction. • ECM malfunction. |
Inspection
Step 1
1) Remove the air cleaner box. (5-15)
2) Turn the ignition switch OFF.
3) Check the injector couplers for loose or poor contacts. If OK, then measure the injector resistance.
![](https://motoinstruction.ru/img/suzuki/14/120307.jpg)
4) Disconnect the injector couplers and measure the resistance between terminals.
- Injector resistance: 11-13 Ω at 20°C (68°F)
- (No.1: (1) - (2))
- (No.2: (3) - (4))
5) If OK, then check the continuity between injector terminals and ground.
![](https://motoinstruction.ru/img/suzuki/14/120308.jpg)
- Injector continuity: ∞ Ω (Infinity)
- (No.1: (1) - Ground)
- (No.2: (3) - Ground)
- 09900-25008: Multi circuit tester set
- Tester knob indication: Resistance (Ω)
![](https://motoinstruction.ru/img/suzuki/14/120309.jpg)
Is the resistance OK?
YES | Go to Step 2 |
NO | Replace the Injector with a new one. (5-18) |
Step 2
1) Disconnect the injector couplers.
2) Turn the ignition switch ON.
3) Measure the injector voltage between Y/R wire (No.1 injector coupler and No.2 injector coupler) and ground.
![](https://motoinstruction.ru/img/suzuki/14/120310.jpg)
- Injector voltage: Battery voltage ((+) Y/R - (-) Ground)
Note: Injector voltage can be detected only 2 seconds after ignition switch is turned ON.
- 09900-25008: Multi circuit tester set
- Tester knob indication: Voltage (⎓)
Is the voltage OK?
YES | • Gr/W or Gr/B wire open or shorted to ground, or poor (5) or (6) connection. • If wire and connection are OK, intermittent trouble or faulty ECM. • Recheck each terminal and wire harness for open circuit and poor connection. |
NO | Inspect the fuel pump relay. (5-10) |
![](https://motoinstruction.ru/img/suzuki/14/120311.jpg)