8 - 56
–
+
ELEC
IMMOBILIZER SYSTEM
EAS00794
TROUBLESHOOTING
Check:
1. main, ignition, and backup fuses
2. battery
3. main switch
4. wiring connections
(of the entire immobilizer system)
NOTE:
• Before troubleshooting, remove the following
part(s):
1. front cowling
2. upper rear cover
• Troubleshoot with the following special
tool(s).
EAS00738
YES
NO
EAS00739
YES
NO
EAS00749
YES
NO
EAS00787
YES
NO
When the main switch is turned “ON”,
the immobilizer system indicator light
does not come on or flash.
Pocket tester
90890-03112, YU-03112-C
1. Main, ignition and backup fuses
• Check the main, ignition and backup fuses
for continuity.
Refer to “CHECKING THE FUSES” in
chapter 3.
• Are the main, ignition and backup fuses
OK?
Replace the fuse(s).
2. Battery
• Check the condition of the battery.
Refer to “CHECKING AND CHARGING
THE BATTERY” in chapter 3.
Minimum open-circuit voltage
12.8 V or more at 20 °C (68 °F)
• Is the battery OK?
• Clean the battery
terminals.
• Recharge or
replace the battery.
3. Main switch
• Check the main switch for continuity.
Refer to “CHECKING THE SWITCHES”.
• Is the main switch OK?
Replace the main
switch/immobilizer
unit.
4. Wiring
• Check the entire immobilizer system wir-
ing.
Refer to “CIRCUIT DIAGRAM”.
• Is the immobilizer system wiring properly
connected and without defects?
Check the condition
of each of the immo-
bilizer system cir-
cuits.
Refer to “CHECK-
ING THE IMMOBI-
LIZER SYSTEM”.
Properly connect or
repair the immobilizer
system wiring.
Summary of Contents for 2004 YP400
Page 1: ...2004 YP400 S 5RU1 AE1 SERVICE MANUAL ...
Page 2: ......
Page 8: ......
Page 9: ...GEN INFO 1 ...
Page 11: ...GEN INFO ...
Page 28: ...SPEC 2 ...
Page 30: ...SPEC ...
Page 77: ...CHK ADJ 3 ...
Page 137: ......
Page 138: ...CHAS 4 ...
Page 210: ......
Page 211: ...ENG 5 ...
Page 286: ...COOL 6 ...
Page 288: ...COOL ...
Page 299: ...FI 7 ...
Page 301: ...FI ...
Page 342: ...ELEC 8 ...
Page 378: ...8 34 ELEC LIGHTING SYSTEM ...
Page 404: ......
Page 405: ...TRBL SHTG 9 ...
Page 415: ......
Page 416: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...