Small Engine Troubleshooting Problems? Ask a Mechanic Now.
you can read the code off yourself as follows:
Turn the key off for 30 seconds. Do the following within 5 seconds: Key ON, OFF, ON, OFF, ON (don't start the engine). Keep your eye on the Check Engine Light (CEL).
The display will either say "Wait" and then the CEL will start blinking; or the CEL will start blinking right away. In either case, count the number of blinks between each long pause
blink Pause blinkblink = 12
P bbbb P b = 41
P bbbbbb P b = 61
The codes are in two-digit numbers so the previous sequence would be 12, 41, 61. 12 = start and 61 = end. 12 may or may not happen.This is a general list of codes. Different models and years may have slight variations.---- 12 Beginning of Diagnostic Check ----21 Loss of Synchronization 22 TPS Circuit: Open or Short to Ground 22 TPS Circuit: Short to Battery 23 RAM Error: Defective ECU 41 Air Temp Sensor: Open or Short Circuit to Sensor Voltage (ECU) 41 Air Temp Sensor: Short Circuit to Ground 42 Engine Temperature Sensor Circuit: Short to Ground 42 Engine Temperature Sensor Circuit: Open or Short to Battery 45 Barometric Pressure Sensor: Circuit Low Input 46 Barometric Pressure Sensor: Circuit High Input 51 Injector 1: Open Load 51 Injector 1: Short Circuit to Ground 51 Injector 1: Short Circuit to battery 52 Injector 2: Open Load 52 Injector 2: Short Circuit to Ground 52 Injector 2: Short Circuit to Battery Yes54 Engine Temperature Lamp: Open Load 54 Engine Temperature Lamp: Short Circuit to Ground 54 Engine Temperature Lamp: Short Circuit to Battery 55 Diagnostic Lamp: Open Load 55 Diagnostic Lamp: Short Circuit to Ground 55 Diagnostic Lamp: Short Circuit to Battery 56 Pump Relay Open Load 56 Pump Relay Short Circuit to Ground 56 Pump Relay Short Circuit to Battery 58 Cooling Fan: Open Load 58 Cooling Fan: Short Circuit to Ground 58 Cooling Fan: Short Circuit to Battery ---- 61 End of Diagnostic Check ----
codes can be cleared by fixing the issue and then disconnecting the battery earth for 30 seconds
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