Yamaha YZF-R1P Service Manual page 349

Fault
Symptom
Code No.
Open circuit is detected in the primary
lead of the ignition coil (#1).
33
Open circuit is detected in the primary
lead of the ignition coil (#2).
34
Open circuit is detected in the primary
lead of the ignition coil (#3).
35
Open circuit is detected in the primary
lead of the ignition coil (#4).
36
Lean angle cut-off switch - open or
41 short circuit detected.
No normal signals are received from
the speed sensor; or, an open or
short circuit is detected in the neutral
42
switch.
The ECU is unable to monitor the bat-
43 tery voltage (an open circuit in the
monitor line to the ECU).
An error is detected while reading or
44
writing on EEPROM.
Faulty ECU memory. When this mal-
50 function is detected, the code number
might not appear on the meter.
No signal are received from the ECU.
Er-1
No signal are received from the ECU
Er-2 within the specified duration.
Date from the ECU cannot be
Er-3 received correctly.
Non-registered date has been
Er-4 received from the meter.
FUEL INJECTION SYSTEM
Probable cause of malfunction
• Open or short circuit in wiring harness.
• Malfunction in ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-off circuit system.
• Open or short circuit in wiring harness.
• Malfunction in ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-off circuit system.
• Open or short circuit wiring harness.
• Malfunction in ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-off circuit system.
• Open or short circuit in wiring harness.
• Malfunction in ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-off circuit system.
• Open or short circuit in wiring harness.
• Defective lean angle cut-off switch.
• Malfunction in ECU.
• Open or short circuit in wiring harness.
• Defective speed sensor.
• Malfunction in vehicle speed sensor detected unit.
• Defective neutral switch.
• Malfunction in the engine side of the neutral switch.
• Malfunction in ECU.
• Open circuit in wiring harness.
• Malfunction in ECU.
• Malfunction in ECU.
• Malfunction in ECU. (The program and data are not properly
written on or read from the internal memory.)
• Open or short circuit in wiring sub lead.
• Malfunction in meter.
• Malfunction in ECU.
• Improper connection in wiring sub lead.
• Malfunction in meter.
• Malfunction in ECU.
• Improper connection in wiring sub lead.
• Malfunction in meter.
• Malfunction in ECU.
• Improper connection in wiring sub lead.
• Malfunction in meter.
• Malfunction in ECU.
7 - 8
FI
Code of
diagnostic mode
30
31
32
33
08
07
21
09
60
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