DETECTED CONDITION | POSSIBLE CAUSE |
CKP signals produced but fuel injector signal is interrupted continuous by 4 times or more. | Injector circuit open or short. Injector malfunction. ECM malfunction. |
Inspection
When indicating C32/P0201 for fuel injector #1
When indicating C33/P0202 for fuel injector #2
Step 1
- 1) Remove the air cleaner chamber. (6-13)
- 2) Turn the ignition switch OFF.
- 3) Check the injector coupler (Front cylinder side 1 or Rear cylinder side 2) for loose or poor contacts.
If OK, then measure the injector resistance.
- 4) Disconnect the injector coupler and measure the resistance between terminals.
Injector resistance:
- 11 - 13 Ω at 23°C (73°F)
- (Terminal - Terminal)
- 5) If OK, then check the continuity between each terminal and ground.
- STP sensor continuity: ∞ Ω (Infinity)
- 09900-25008: Multi-circuit tester set
- Tester knob indication: Resistance (Ω)
Are the resistance and continuity OK?
YES | Go to Step 2. |
NO | Replace the injector with a new one. (6-22) |
- 6) After repairing the trouble, clear the DTC using SDS tool. (5-26)
Step 2
- 1) Turn the ignition switch ON.
- 2) Measure the injector voltage between Y/R wire and ground.
Injector voltage:
- Battery voltage
- (+ Y/R - − Ground)
Note: Injector voltage can be detected only 3 for seconds after ignition switch is turned ON.
- 09900-25008: Multi-circuit tester set
- Tester knob indication: Voltage
Is the voltage OK?
YES | Gr/B wire open or shorted to ground, or poor 47 connection. (Front cylinder side) Gr/W wire open or shorted to ground, or poor 48 connection. (Rear cylinder side) If wire and connection are OK, intermittent trouble or faulty ECM. Recheck each terminal and wire harness for open circuit and poor connection. Replace the ECM with a known good one, and inspect it again. |
NO | Open circuit in the Y/R wire |
- 3) After repairing the trouble, clear the DTC using SDS tool. (5-26)