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ECU Code Action Required
Code Faulty part Possible Cause Action required
ECU 01 Overheated Damaged Thermostat Check Components engine Damaged Radiator
Damaged Coolant lines
ECU 02 Stator coil Faulty Wiring or connector Check Wiring & Connectors
Pick-up Sensor Check Continuity to ground
Water in/on Pickup Sensor Dry area
Damaged/faulty Stator Check Stator Resistance
ECU 03 TPS TPS pulley screw adjustment Check pulley screw
04 incorrectly
05 Throttle cable incorrectly Check Cable Adjustment
Adjusted
Faulty wiring or connector Check Wiring & Connectors
Damaged TPS Replace TPS in the TBA
ECU 06 TPS Damaged or worn TPS Replace TPS
07
ECU 08 TPS Water in TPS or wiring Dry TPS and/or wiring
ECU 09 ECU Faulty ECU wiring or connector Check Wiring & Connectors
To Terminal pin 15
Inj. Sys relay Faulty wiring to Inj. Sys relay Check Wiring Continuity
Disconnected
Low Bat volts Faulty Rectifier/wiring Check charging sys.
Faulty Stator
ECU 10 Oil Pump Faulty Wiring or connector Check Wiring & Connectors
Faulty connection to ECU pin 2
Damaged Oil Pump Check Resistance in pump
Faulty ECU Check ECU (sect. 11)
ECU11 Air Injector Faulty Wiring or connector Check Wiring & Connectors
Faulty connection to ECU pin 13 and Continuity.
Damaged Air Injector Check Resistance in Air Inj.
Faulty wiring to Inj. Sys relay Check Wiring Continuity
Faulty Fuel Inj. Sys relay Check Relay
Faulty ECU Check ECU (sect. 11)
ECU 12 Fuel Injector Faulty Wiring or connector Check Wiring & Connectors
Faulty connection to ECU pin 3 and Continuity.
Damaged Fuel Injector Check Resistance in Fuel Inj.
Faulty wiring to Inj. Sys relay Check Wiring Continuity Faulty ECU Check ECU (sect. 11)
ECU 13 Ignition Sys Faulty Wiring or connector Check Wiring & Connectors
Faulty connection to ECU pin 12
Faulty Ignition HT Coil Check HT Coil, lead and cap
Faulty Sparkplug Check & replace if needed
Faulty Fuel Inj. Sys relay Check Relay Faulty ECU Check ECU (sect. 11)
ECU 14 Fuel Pump Faulty Wiring or connector Check Wiring & Connectors
Faulty connection to ECU pin 14
Faulty Fuel Pump Check Fuel Pump Faulty ECU Check ECU (sect. 11)
ECU 15 Rev Limiter Max safe engine speed exceeded
ECU 16 ECU Power Faulty Wiring or connector Check Wiring & Connectors
Supply Faulty connection to ECU pin 17
Faulty ECU Check ECU (sect. 11)
ECU 17 High RPM Faulty Throttle Cable Adjustment Check Cable Adjustment
@ Start up Faulty ECU Check ECU (sect. 11)
ECU 18 Temp Sensor Faulty Wiring or connector Check Wiring & Connectors
Faulty connection to ECU pin 9 & 16
ECU 19 Temp Sensor Faulty Temp Sensor Check Temp Resistance (Chap 4)
Faulty ECU Check ECU (sect. 11)
ECU 20 Temp Gauge Faulty Wiring or connector Check Wiring & Connectors
Faulty connection to ECU pin 5
Faulty Sensor/connector See Fault Code 19
Faulty Temp Gauge Check Temp Gauge (chap 4)
Faulty ECU Check ECU (sect. 11)
ECU 21 Inj Sys (Pre-Digi-dash SR50’s) warning
Light Check Bulb
ECU 22 ECU power Faulty Wiring or connector Check Wiring & Connectors
Supply Faulty connection to ECU pin 17
Faulty ECU Check ECU (sect. 11)
ECU 23 ECU Faulty Atmospheric Sensor Check Wiring & Connectors
Faulty ECU Check ECU (sect. 11)
ECU Codes in Red means that the Engine will not run/start
ECU Coded in Orange means that the Engine may or may not run/start
ECU Code list in file name: ECU Error Code List.xls
ECU Code Action Required file name: ECU Code Action Required.doc
Date last updated: 11-Oct-24
Error Description
Error Code
Engine overheat
ECU 01
Pick-up sensor failure
ECU 02
Wrong signal from throttle position sensors
ECU 03
Wrong signal from throttle position sensor 1
ECU 04
Wrong signal from throttle position sensor 2
ECU 05
Throttle position sensor 1 malfunction
ECU 06
Throttle position sensor 2 malfunction
ECU 07
Throttle position sensors malfunction
ECU 08
Incorrect charging voltage
ECU 09
Oil pump malfunction
ECU 10
Air injector malfunction
ECU 11
Fuel injector malfunction
ECU 12
Ignition circuit malfunction
ECU 13
Fuel pump malfunction
ECU 14
Engine rpm limiter tripped
ECU 15
Error in ECU power supply
ECU 16
Rpm limiter tripped while starting
ECU 17
Engine temperature sensor malfunction
ECU 18
Coolant Temperature Sensor
ECU 19
Coolant Temperature Gauge
ECU 20
Injection System Warning Light (pre Digi-Dash)
ECU 21
Error on ECU Throttle sensor connection
ECU 22
Atmospheric pressure sensor malfunction
ECU 23
Error Codes/Description in red = Engine will NOT start
Date Last Updated: 11-Oct-24
INSTRUMENT PANEL ERROR DESCRIPTION
Error Code
Immobilizer failure: Key code read but not acknowledged
DSB 01
Immobilizer failure: Key code not read (key not available or broken transponder)
DSB 02
Immobilizer failure: Broken antenna (open or short-circuited)
DSB 03
Immobilizer failure: Inner controller failure
DSB 04
Fuel sensor failure
DSB 05
Not Specified/used
DSB 06
Not Specified/used
DSB 07
