6-7
Electrical Servicing
PGM-FI Self-diagnosis Malfunction Indicator Lamp (MIL) Failure Codes
• The PGM-FI MIL denotes the failure codes (the number of blinks from 0 to 69). When the indicator lights for 1.3 seconds, it is equivalent to ten blinks. For exam-
ple; a 1.2 second illumination and two blinks (0.5 second x 2) of the indicator equals 12 blinks. Follow code 12 troubleshooting.
• When more than one failure occurs, the MIL shows the blinks in the order of lowest number to highest number. For example; if the indicator blinks once, then
seven times, two failures have occurred. Follow codes 1 and 7 troubleshooting.
Number of blinks
Causes
Symptoms
0
No blinks
• Faulty ECM/PGM-FI warning indicator unit (*)
• Engine does not start
No blinks
• Faulty ECM (PGM-FI warning indicator output)
• Engine operates normally
Stay lit
• Short circuit in service check connector
• Engine operates normally
• Faulty ECM (PGM-FI warning indicator output)
1
Blink
• Open or short circuit in MAP sensor line (in the ECM)
• Engine operates normally
• Faulty MAP sensor
2
Blink
• Poor MAP sensor vacuum hose connection
• Engine operates normally
• Faulty MAP sensor
6
Blinks
• Open or short circuit in BARO sensor line (in the ECM)
• Engine operates normally
• Faulty BARO sensor
• Poor idle at high altitude
7
Blinks
• Loose or poor contact on ECT sensor
• Hard starting at a low temperature
• Open or short circuit in ECT sensor wire
(Simulate using numerical values; 40 ˚C/104˚F)
• Faulty ECT sensor
• Cooling fan does not stop
8
Blinks
• Open or short circuit in TP sensor line (in the ECM)
• Poor engine response when operating the throttle quickly
• Faulty TP sensor
(Simulate using numerical values; throttle open 0˚)
9
Blinks
• Open or short circuit in IAT sensor line (in the ECM)
• Engine operates normally
(Simulate using numerical values; 25˚C/77˚F)
12
Blinks
• Loose or poor contact on injector connector
• Engine does not start
• Open or short circuit in injector wire
• Faulty injector
19
Blinks
• Loose or poor contact on No.1 ignition pulse generator connector
• Engine does not start
• Open or short circuit in No.1 ignition pulse generator connector
69
Blinks
• Loose or poor contact on No.2 ignition pulse generator connector
• Engine does not start
• Open or short circuit in No.2 ignition pulse generator connector
* To check the faulty PGM-FI unit and PGM-FI warning unit:
1. Disconnect the injector connector.
2. Follow PGM-FI self-diagnosis procedure (page 6-6), check that the MIL indicate the injector mulfunction code.
– MIL does indicate the injector mulfunction: Faulty PGM-FI unit.
– MIL does not indicate the injector mulfunction: Faulty PGM-FI warning unit (After replacing the PGM-FI warning unit, redo self-diagnosis procedure)
After inspection, reset PGM-FI warning unit (page 6-6).
Содержание NSF250R 2012
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