|
|
MPI – Troubleshooting 13-16 Code No. 44 Ignition coil and power transistor unit system Probable cause Range of Check D Engine speed is approx. 50 – 4,000 r/min D Engine is not cranking. Set conditions D Abnormal rotation due to misfire is detected by crank angle sensor (Either one D Malfunction of the ignition coil D Improper connector contact, open or short-circuited D Malfunction of the engine-ECU OK OK Check trouble symptom. Measure at the ignition coil connectors D Disconnect the connector, and 1. Voltage between 1 and earth (Ignition switch: ON) 2. Voltage between 3 and earth (Engine: Cranking) 3. Continuity between the 2 and earth OK: Continuity 1. NG Check the following connectors: OK Check trouble symptom. NG Check the harness wire between the 2. NG Check the following connector: B-59 NG Repair NG Check the harness wire between the OK Replace the engine-ECU. NG Repair 3. NG Check the harness wire between the Check the following connectors: NG Repair Check trouble symptom. NG Check the following items. D Check the spark plugs, spark plug D Check the compression pressure. NG Repair Check the ignition coil. (Refer to NG Replace OK OK |