Self-Diagnostic Function Table (For Immobilizer System) - Yamaha XSR MTM690 2016 Service Manual

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
Fault code
No.
P1602 Malfunction in ECU
internal circuit (mal-
function of ECU pow-
er cut-off function)
P1604 [P1604] Lean angle
P1605 sensor (ground short
circuit detected)
[P1605] Lean angle
sensor (open or pow-
er short circuit detect-
ed)
P2195 O sensor (open cir-
2
cuit detected)
EAS31795

SELF-DIAGNOSTIC FUNCTION TABLE (FOR IMMOBILIZER SYSTEM)

TIP
For details of the fault code, refer to "SELF-DIAGNOSIS FAULT CODE INDICATION" on page 8-112.
Fault code
No.
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.
Probable cause of
Item
malfunction
• 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 backup fuse.
• Malfunction in ECU.
[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.
• Signal voltage is
0.25–0.53 V.
• Improperly installed
O sensor.
2
• Defective coupler
between O
and ECU.
• Open or short cir-
cuit in wire harness
between O
and ECU.
• Defective O
• Malfunction in ECU.
Vehicle symptom
Engine idling speed is
unstable.
Engine idling speed is
high.
Increased exhaust
emissions.
Engine is difficult to
start.
Engine cannot be
started.
Increased exhaust
emissions.
sensor
2
sensor
2
sensor.
2
Item
9-11
Fail-safe system op-
eration
O feedback learning
2
is not carried out.
O feedback learning
2
value is not written.
Engine cannot be
started.
O feedback is not
2
carried out.
O feedback learning
2
is not carried out.