7 - 27
FI
FUEL INJECTION SYSTEM
Fault code No.
Er-1
Symptom
No signal are received from the ECU.
Used diagnostic code No. --
Inspection operation item and probable cause Operation item and countermeasure
Reinstatement
method
Open or short circuit in wiring harness and/or
sub lead.
Repair or replace if there is an open or short
circuit.
Between sensor coupler and ECU coupler
Yellow/Red - Yellow/Red
Black/White - Black/White
Reinstated by turn-
ing the main switch
ON.
Connected condition of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
If there is a malfunction, repair it and connect it
securely.
Cylinder identification sensor coupler
Main wiring harness ECU coupler
Sub-wire harness coupler
Malfunction in meter
Replace the meter.
Malfunction in ECU
Replace the ECU.
Fault code No.
Er-2
Symptom
No signal are received from the ECU within the specified duration.
Used diagnostic code No. --
Inspection operation item and probable cause Operation item and countermeasure
Reinstatement
method
Open or short circuit in wiring harness and/or
sub lead.
Repair or replace if there is an open or short
circuit.
Between sensor coupler and ECU coupler
Yellow/Red - Yellow/Red
Black/White - Black/White
Reinstated by turn-
ing the main switch
ON.
Connected condition of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
If there is a malfunction, repair it and connect it
securely.
Cylinder identification sensor coupler
Main wiring harness ECU coupler
Sub-wire harness coupler
Malfunction in meter
Replace the meter.
Malfunction in ECU
Replace the ECU.
Fault code No.
Er-3
Symptom
Data from the ECU cannot be received correctly.
Used diagnostic code No. --
Inspection operation item and probable cause Operation item and countermeasure
Reinstatement
method
Open or short circuit in wiring harness and/or
sub lead.
Repair or replace if there is an open or short
circuit.
Between sensor coupler and ECU coupler
Yellow/Red - Yellow/Red
Black/White - Black/White
Reinstated by turn-
ing the main switch
ON.
Connected condition of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
If there is a malfunction, repair it and connect it
securely.
Cylinder identification sensor coupler
Main wiring harness ECU coupler
Sub-wire harness coupler
Malfunction in meter
Replace the meter.
Malfunction in ECU
Replace the ECU.
Summary of Contents for YZF-R1P 2001-2003
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Page 3: ...YZF R1P YZF R1PC SERVICEMANUAL LIT 11616 15 47 5PW 28197 10...
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Page 78: ...2 28 SPEC COOLING SYSTEM DIAGRAMS 1 Radiator...
Page 83: ...2 33 SPEC LUBRICATION DIAGRAMS 1 Main axle 2 Oil delivery pipe 3 Drive axle...
Page 84: ...2 34 SPEC LUBRICATION DIAGRAMS 1 Cylinder head 2 Crankshaft...
Page 439: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A...