Yamaha Tenere 700 2020, Service Manual

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SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-7
EAS32497
SELF-DIAGNOSTIC FUNCTION TABLE (FOR IMMOBILIZER SYSTEM)
TIP
For details of the fault code, refer to “SELF-DIAGNOSIS FAULT CODE INDICATION” on page 8-94.
P1602 Malfunction in ECU
internal circuit (mal-
function of ECU pow-
er cut-off function) • Open or short cir-
cuit in wire harness
between ECU and
battery.
• Open or short cir-
cuit in wire harness
between ECU and
main switch.
• Blown fuel injection
system fuse.
• Malfunction in ECU.
Engine idling speed is
unstable.
Engine idling speed is
high.
Increased exhaust
emissions.
Engine is difficult to
start. O
2
feedback learning
is not carried out.
O
2
feedback learning
value is not written.
P1604
P1605 [P1604] Lean angle
sensor (ground short
circuit detected)
[P1605] Lean angle
sensor (open or pow-
er short circuit detect-
ed) [P1604] Low voltage
of the lean angle sen-
sor circuit (0.2 V or
less)
[P1605] High voltage
of the lean angle sen-
sor circuit (4.8 V or
more)
• Open or short cir-
cuit in wire harness
between lean angle
sensor and ECU.
• Defective lean an-
gle sensor.
• Malfunction in ECU.
Engine cannot be
started. Engine cannot be
started.
P2195 O
2
sensor (open cir-
cuit detected)
• Signal voltage is
0.25–0.53 V.
• Improperly installed
O
2
sensor.
• Defective coupler
between O
2
sensor
and ECU.
• Open or short cir-
cuit in wire harness
between O
2
sensor
and ECU.
• Defective O
2
sensor.
• Malfunction in ECU.
Increased exhaust
emissions. O
2
feedback is not
carried out.
O
2
feedback learning
is not carried out.
Fault code
No.
Item
51 Immobilizer unit: Code cannot be transmitted between the key and the immobilizer unit.
52 Immobilizer unit: Codes between the key and immobilizer unit do not match.
53 Immobilizer unit: Codes cannot be transmitted between the ECU and the immobilizer unit.
54 Immobilizer unit: Codes transmitted between the ECU and the immobilizer unit do not match.
55 Immobilizer unit: Key code registration malfunction.
56 ECU: Unidentified code is received.
Fault code
No.
Item
Probable cause of
malfunction
Vehicle symptom
Fail-safe system op-
eration