ENGINE (COMMON ITEMS)
2—1
ENGINE (COMMON ITEMS)
2-002
TROUBLE SHOOTING..............................2-2
VEHICLE CONTROL ECU........................2-2
CAUTIONS ON TROUBLESHOOTING.............2-2
SYSTEM BLOCK DIAGRAM....................2-4
VEHICLE CONTROL ECU CONNECTOR PIN
ASSIGNMENT..............................2-5
PRIOR CHECK.............................2-8
TROUBLE DIAGNOSIS USING THE COMPUTER
(HINODX II )...........................2-13
TROUBLESHOOTING WITH DIAGNOSIS
MONITOR................................2-15
DIAGNOSIS CODE TABLE...................2-17
DTC: C1249 (Diagnosis monitor code 36).2-18
DTC: C1384 (Diagnosis monitor code 27).2-24
DTC: P0500 (Diagnosis monitor code 8)..2-30
DTC: P0500 (Diagnosis monitor code 24).2-34
DTC: P0501 (Diagnosis monitor code 24).2-38
DTC: P0562 (Diagnosis monitor code 6)..2-42
DTC: P0563 (Diagnosis monitor code 6)..2-45
DTC: P0605 (Diagnosis monitor code 2)..2-47
DTC: P0617 (Diagnosis monitor code 45).2-49
DTC: P0704 (Diagnosis monitor code 41).2-52
DTC: P0850 (Diagnosis monitor code 47).2-57
DTC: P1142 (Diagnosis monitor code 44).2-62
DTC: P1143 (Diagnosis monitor code 44).2-66
DTC: P161F (Diagnosis monitor code 46).2-70
DTC: U0105 (Diagnosis monitor code 23).2-74
DTC: U0155 (Diagnosis monitor code 22).2-77
DTC: U0401 (Diagnosis monitor code 39).2-80
DCU.......................................2-83
CAUTIONS ON TROUBLE SHOOTING...........2-83
SYSTEM BLOCK DIAGRAM...................2-85
COMPUTER PIN ASSIGNMENT................2-86
PRIOR INSPECTION.......................2-88
TROUBLE DIAGNOSIS USING THE COMPUTER
(HINODX II )...........................2-89
DIAGNOSIS TROUBLE CODE TABLE...........2-91
RESET UREA SCR RELATED MEMORY..........2-94
DTC: P0072.............................2-95
DTC: P0073............................2-101
DTC: P0545............................2-107
DTC: P0546............................2-110
DTC: P0562............................2-113
DTC: P0563............................2-118
DTC: P060C............................2-123
DTC: P062F............................2-125
DTC: P0667............................2-127
DTC: P0668............................2-129
DTC: P0669............................2-131
DTC: P068A.........................2-133
DTC: P142A.........................2-137
DTC: P142B.........................2-147
DTC: P202E.........................2-157
DTC: P203C.........................2-160
DTC: P203D.........................2-164
DTC: P2047.........................2-168
DTC: P2048.........................2-170
DTC: P2049.........................2-174
DTC: P204B.........................2-178
DTC: P204C.........................2-181
DTC: P204D.........................2-190
DTC: P205B.........................2-199
DTC: P205C.........................2-208
DTC: P205D.........................2-212
DTC: P208A.........................2-216
DTC: P208B.........................2-220
DTC: P208C.........................2-223
DTC: P208D.........................2-227
DTC: P20A0.........................2-231
DTC: P20A1.........................2-236
DTC: P20A2.........................2-240
DTC: P20A3.........................2-245
DTC: P20B1.........................2-249
DTC: P20B2.........................2-253
DTC: P20B3.........................2-261
DTC: P20B4.........................2-265
DTC: P20B9.........................2-269
DTC: P20BC.........................2-277
DTC: P20BD.........................2-283
DTC: P20C0.........................2-291
DTC: P20E8.........................2-297
DTC: P20E9.........................2-305
DTC: P20FC.........................2-310
DTC: P20FD.........................2-314
DTC: P20FE.........................2-319
DTC: P2215.........................2-324
DTC: P2222.........................2-327
DTC: P2510.........................2-333
DTC: U0029.........................2-337
DTC: U0038.........................2-340
DTC: U0100.........................2-343
DTC: U029E.........................2-346
DTC: U0597.........................2-354
2—2
ENGINE (COMMON ITEMS)/TROUBLE SHOOTING
TROUBLE SHOOTING
VEHICLE CONTROL ECU
CAUTIONS ON TROUBLESHOOTING
EN01H02999030102006001
•	Before performing inspection, check that each connector is correctly connected.
•	Before disconnecting the connector, be sure that the starter key is in the "LOCK" position.
•	If a part is judged to have an abnormality, do not repair but replace it.
•	Record and erase the past malfunction memory and perform troubleshooting again to confirm the present malfunction.
•	After analyzing the malfunction, erase the past malfunction memory.
ENGINE (COMMON ITEMS)/TROUBLE SHOOTING
2—3
1. ABOUT THE CONNECTOR DIAGRAM AND TERMINAL MEASUREMENT
Lock
To be connected
ILLUSTRATION OF CONNECTOR
The illustration of a connector contained in this document
represents an image of a connector with its lock positioned on
top as viewed from the connecting face.
Male connector Female connector
NUMBERING OF CONNECTOR TERMINALS
The terminals are symmetrically numbered (symmetrically
reversed numbering) as viewed on the connecting faces of a pair
of connectors.
The terminal #1 is located at the top right corner of a male
connector and at the top left corner of a female connector
respectively in this document.
PRECAUTIONS FOR TERMINAL MEASUREMENT
Unless otherwise specified in this document, the illustration of a
connector represents an image of a connector as viewed from the
connecting face. A test probe must access the back face of a
connector.
However, some types of connector do not allow a test probe to
contact with the back face such as a waterproof connector. In
such case, a test probe may be allowed to access the front face
of a connector but a special care must be used to avoid a risk of
damage in terminals.
As to a connector that is designed to use the signal check
harness for terminal measurement, do not place a test probe
directly onto the front or back face. Use the contact box of the
connected signal check harness to take measurement on
terminals.
ILLUSTRATION OF CONNECTOR AND MEASUREMENT SURFACE
The illustration of a connector contained in this document
represents an image of a connector as viewed from the
connecting face. For example, the terminal #1 of a female
connector is located at the top left corner of a connector as
viewed from the connecting face.
In actual measurement on the terminal #1 of a female connector,
a test probe must be placed onto the top right corner on the back
face of a connector.
SHTS029990300001
ENGINE (COMMON ITEMS)/TROUBLE SHOOTING
SYSTEM BLOCK DIAGRAM
EN01H02999030405006001
SHTS029990300002
ENGINE (COMMON ITEMS)/TROUBLE SHOOTING
2-5
VEHICLE CONTROL ECU CONNECTOR PIN ASSIGNMENT
EN01H02999030404006001
30 PIN CONNECTOR
No	Code	Signal name	No.	Code	Signal name
1	-	Not used	16	-	Not used
2	HCAH	Vehicle can 2 high	17	VSP1	Vehicle speed sensor
3	HCAL	Vehicle can 2 low	18	-	Not used
4	CDGH	Engine control diagnosis can 2 high	19	TACH	Tachometer
5	CDGL	Engine control diagnosis can 2 low	20	DAT1	Data logger transmitting signal
6	VCAH	Vehicle can 1 high	21	DAT2	Data logger recemng signa
7	VCAL	Vehicle can 1 low	22	-	Not used
8	ECAH	Engine control diagnosis can 1 high	23	-	Not used
9	ECAL	Engine control diagnosis can 1 low	24	-	Not used
10	ARY1	Actuator relay	25	-	Not used
11	-	Not used	26	EGST	Engine running signal
12	-	Not used	27	-	Not used
13	-	Not used	28	-	Not used
14	-	Not used	29	-	Not used
15	-	Not used	30	ISOK	ISO9141
2—6
ENGINE (COMMON ITEMS)/TROUBLE SHOOTING
24 PIN CONNECTOR
-	}—			
	n	l2l 3	4 И	
	7 8	9 10 11	12 13 14 15	v,4zv*	venicie side 6	harness
	17 18	9 20 -	21 22 23	24 J
V			1	
SHTS029990300004
No	Code	Signal name	No.	Code	Signal name
1	-	Not used	13	-	Not used
2	-	Not used	14	-	Not used
3	SIND	Diagnosis light	15	-	Not used
4	-	Not used	16	-	Not used
5	-	Not used	17	CSW1	Combination switch 1
6	-	Not used	18	-	Not used
7	CLSW	Clutch switch	19	-	Not used
8	IDLE	Accel switch	20	-	Not used
9	-	Not used	21	-	Not used
10	-	Not used	22	-	Not used
11	-	Not used	23	-	Not used
12	-	Not used	24	-	Not used
ENGINE (COMMON ITEMS)/TROUBLE SHOOTING
2—7
26 PIN CONNECTOR
View
Vehicle side
harness
SHTS029990300005
No	Code	Signal name	No.	Code	Signal name
1	SP1	System power supply 1	14	KSW2	Key switch 2
2	SP2	System power supply 2	15	PRKB	Buzzer cancel switch
3	AP1	Actuator power supply 1	16	APC4	Power supply idle volume
4	AP2	Actuator power supply 2	17	ASCS	Idle volume
5	AG1	Power ground	18	AGD4	Sensor ground idle volume
6	SG1	Signal ground	19	-	Not used
7	STS	Starter signal	20	-	Not used
8	-	Not used	21	DGSW	Diagnosis switch
9	TBSW	Stop light switch	22	-	Not used
10	-	Not used	23	BSW1	Brake switch
11	-	Not used	24	-	Not used
12	NUSW	Neutral switch	25	RNRR	Aux system rev up signal
13	KSW1	Key switch 1	26	-	Not used