SELF DIAGNOSTIC
SELF-DIAGNOSTIC FUNCTION.....................................................................9-1
GLOSSARY...............................................................................................9-1
OUTLINE ...................................................................................................9-1
CHECKING THE WARNING LIGHT .........................................................9-2
YDT ...........................................................................................................9-3
PARTS CONNECTED TO THE ECU ........................................................9-3
PARTS CONNECTED TO THE ABS ECU................................................9-4
PRECAUTIONS FOR ROAD TEST ..........................................................9-4
SYSTEM DIAGRAM ........................................................................................9-5
ECU CIRCUIT DIAGRAM..........................................................................9-5
ECU COUPLER LAYOUT .........................................................................9-8
FUEL INJECTION SYSTEM..........................................................................9-12
CIRCUIT DIAGRAM ................................................................................9-12
BASIC PROCESS FOR TROUBLESHOOTING .....................................9-16
[A] THE MIL COMES ON/FLASHES AND ENGINE OPERATION IS
NOT NORMAL........................................................................................9-17
[B] THE MIL DOES NOT COME ON, BUT THE ENGINE OPERATION
IS NOT NORMAL ...................................................................................9-17
CRUISE CONTROL SYSTEM (for XP560D) ................................................9-18
CIRCUIT DIAGRAM ................................................................................9-18
CRUISE CONTROL CIRCUIT OPERATION...........................................9-20
BASIC INSTRUCTIONS FOR TROUBLESHOOTING ............................9-21
BASIC PROCESS FOR TROUBLESHOOTING .....................................9-22
[A] CHECKING THE CRUISE CONTROL SYSTEM INDICATOR
LIGHT .....................................................................................................9-23
[B-1] DIAGNOSIS USING THE DTC .......................................................9-23
[B-2] DIAGNOSIS USING THE MALFUNCTION HISTORY CODES......9-23
[B-3] MALFUNCTION HISTORY IS NOT DISPLAYED...........................9-23
[C-1] ERASING THE DTC .......................................................................9-25
[C-2] FINAL CHECK ................................................................................9-25
ABS (Anti-lock Brake System)....................................................................9-26
CIRCUIT DIAGRAM ................................................................................9-26
ABS COMPONENTS CHART .................................................................9-30
ABS COUPLER LOCATION CHART ......................................................9-31
MAINTENANCE OF THE ABS ECU .......................................................9-32
ABS TROUBLESHOOTING OUTLINE....................................................9-32
BASIC INSTRUCTIONS FOR TROUBLESHOOTING ............................9-33
[A] CHECKING THE ABS WARNING LIGHT..........................................9-35
[A-1] ONLY THE ABS WARNING LIGHT FAILS TO COME ON.............9-35
[A-2] ALL INDICATOR LIGHTS FAIL TO COME ON ..............................9-35
[A-3] THE ABS WARNING LIGHT COMES ON ......................................9-35
[A-4] ONLY THE ABS ECU FAILS TO COMMUNICATE ........................9-35
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