P0685 HONDA Electronic Control Module Power Control Circuit Malfunction

Possible causes – Faulty Engine Control Module (ECM) power relay– ECM power relay harness is open or shorted– ECM power relay circuit poor electrical connection– Faulty (ECM) Tech description Check all the ECM fuses, if the fuses are OK try replacing the ECM relay. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)…

P0641 HONDA Sensor Reference Voltage A Malfunction

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher or lower than expected Symptoms – Engine Light…

P0651 HONDA Sensor Reference Voltage B Circuit Malfunction

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher or lower than expected Symptoms – Engine Light…

P0607 HONDA ECM Internal Circuit Malfunction

Possible causes – Faulty Engine Control Module (ECM)– Engine Control Module (ECM) Harness power supply circuit is open or shorted– Engine Control Module (ECM) Programming Tech description Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the ECM….

P0600 HONDA Serial Communication Link Malfunction

Possible causes – Faulty Engine control Module (ECM)– Engine control Module(ECM) harness is open or shorted– Engine control Module (ECM) cicuit poor electricl connection– Low battery voltage Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0600 HONDA OBD Code Description The ECM did not detect communication between modules

P1114 HONDA Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1114 HONDA OBD Code Description The Engine Coolant…

P1115 HONDA Engine Coolant Temperature Sensor Circuit Intermittent High Voltage

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1115 HONDA OBD Code Description The Engine Coolant…

P0704 HONDA Clutch Switch Input Circuit Malfunction

Possible causes – Faulty Clutch Switch– Misadjusted Clutch Switch– Clutch Switch harness is open or shorted– Clutch Switch circuit poor electrical connection– Faulty Engine Control Module (ECM) Tech description Check clutch switch adjustment, the switch should open and close when the clutch pedal is depress. If the switch is properly adjusted, replaced the clutch switch…

P1336 HONDA Crankshaft Speed Fluctuation Sensor Intermittant Interruption

Possible causes – Faulty Crankshaft Position Sensor– Crankshaft Position Sensor harness is open or shorted– Crankshaft Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of Power– Engine Stall P1336 HONDA OBD Code Description The Crankshaft Position Sensor (CKP) also known as the crank position sensor…

P0336 HONDA Crankshaft Position Sensor A Circuit Range/Performance

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech description Sometimes and in some models, low battery voltage or a weak starter can can…