JQL
Growing old disgracefully
The MIL has a long (1.3 sec) flash and a short (0.5sec) flash. The long flash represents 10 short flashes.
If you switch on your ignition and the FI light flashes two long flashes followed by one short flash
the PGM-FI has displayed a DTC of 21 because the O2 sensor in the exhaust system has a problem. Simples!
Diagnostic Trouble Codes and symptoms indicated by the FI light
1 Flash Manifold Absolute Pressure (MAP) sensor or circuitry faulty. Engine operates normally.
2 Flashes MAP sensor or circuitry faulty, loose or poor connection of vacuum hose. Engine operates normally.
7 flashes Engine Coolant Temperature (ECT) sensor or circuitry faulty. Engine hard to start at low temperatures, fan on permanently.
8 Flashes Throttle Position (TP) sensor or circuitry faulty. Poor engine acceleration.
9 Flashes Intake Air Temperature (IAT) sensor or circuitry faulty. Engine operates normally.
11 Flashes Vehicle Speed (VS) sensor or its circuitry faulty. Engine operates normally.
12 Flashes No.1 injector or its circuitry faulty. Engine does not start. Fuel pump and ignition shut down.
13 Flashes As per 12 flashes above but No.2 injector.
18 Flashes Camshaft Position Sensor (CMP) or its circuitry faulty. Engine does not start. Fuel pump and ignition shut down
19 Flashes Crankshaft Position Sensor (CKP) sensor or circuitry faulty. Engine does not start. Injectors, fuel pump and ignition shut down.
21 Flashes O2 Sensor or its circuitry faulty. Engine operates normally
23 Flashes O2 Sensor heater circuit faulty. Engine operates normally
29 Flashes Idle Air Control Valve (IACV) or its circuit faulty. Engine stalls, hard to start, rough idling.
If a component malfunction occurs, in some cases a default setting will be used to enable the bike to continue in "limp mode". This is called the fail safe function.
The ECT sensor has a failsafe of 90 deg C/194 deg F
The TP sensor has a failsafe of 0 degrees.
The IAT has a failsafe of 25 deg C/77 deg F
If you switch on your ignition and the FI light flashes two long flashes followed by one short flash
the PGM-FI has displayed a DTC of 21 because the O2 sensor in the exhaust system has a problem. Simples!
Diagnostic Trouble Codes and symptoms indicated by the FI light
1 Flash Manifold Absolute Pressure (MAP) sensor or circuitry faulty. Engine operates normally.
2 Flashes MAP sensor or circuitry faulty, loose or poor connection of vacuum hose. Engine operates normally.
7 flashes Engine Coolant Temperature (ECT) sensor or circuitry faulty. Engine hard to start at low temperatures, fan on permanently.
8 Flashes Throttle Position (TP) sensor or circuitry faulty. Poor engine acceleration.
9 Flashes Intake Air Temperature (IAT) sensor or circuitry faulty. Engine operates normally.
11 Flashes Vehicle Speed (VS) sensor or its circuitry faulty. Engine operates normally.
12 Flashes No.1 injector or its circuitry faulty. Engine does not start. Fuel pump and ignition shut down.
13 Flashes As per 12 flashes above but No.2 injector.
18 Flashes Camshaft Position Sensor (CMP) or its circuitry faulty. Engine does not start. Fuel pump and ignition shut down
19 Flashes Crankshaft Position Sensor (CKP) sensor or circuitry faulty. Engine does not start. Injectors, fuel pump and ignition shut down.
21 Flashes O2 Sensor or its circuitry faulty. Engine operates normally
23 Flashes O2 Sensor heater circuit faulty. Engine operates normally
29 Flashes Idle Air Control Valve (IACV) or its circuit faulty. Engine stalls, hard to start, rough idling.
If a component malfunction occurs, in some cases a default setting will be used to enable the bike to continue in "limp mode". This is called the fail safe function.
The ECT sensor has a failsafe of 90 deg C/194 deg F
The TP sensor has a failsafe of 0 degrees.
The IAT has a failsafe of 25 deg C/77 deg F
