DG Code	Source	Malfunction Outline
P0107	Atmospheric pressure sensor	Output from the atmospheric pressure sensor is too low.
P0108	Atmospheric pressure sensor	Output from the atmospheric pressure sensor is too high.
P0112	Intake air temperature sensor	Output from the intake air temperature sensor is too low.
P0113	Intake air temperature sensor	Output from the intake air temperature sensor is too high.
P0117	Coolant temperature sensor	Output from the coolant temperature sensor is too low.
P0118	Coolant temperature sensor	Output from the coolant temperature sensor is too high.
P0121	Accelerator position sensor	Output from accelerator position sensors No. 1 and No. 2 is inconsistent.
P0122	Accelerator position sensor No. 1	Output from the accelerator position sensor is too low.
P0123	Accelerator position sensor No. 1	Output from the accelerator position sensor is too high.
P0187	Fuel temperature sensor	Output from the fuel temperature sensor is too low.
P0188	Fuel temperature sensor	Output from the fuel temperature sensor is too high.
P0191	Rail pressure sensor	Output from the rail pressure sensor is fixed at a middle value.
P0192	Rail pressure sensor	Output from the rail pressure sensor is too low.
P0193	Rail pressure sensor	Output from the rail pressure sensor is too high.
P0200	Injector COM1	COM1 is open or short circuited; or TWV1, TMV3 or TWV5 is open orshort circuited.
P0201	Injector TWV	Open circuit in the TWV1 wiring or injector coil.
P0202	Injector TWV	Open circuit in the TWV5 wiring or injector coil.
P0203	Injector TWV	Open circuit in the TWV3 wiring or injector coil.
P0204	Injector TWV	Open circuit in the TWV6 wiring or injector coil.
P0205	Injector TWV	Open circuit in the TWV2 wiring or injector coil.
P0206	Injector TWV	Open circuit in the TWV4 wiring or injector coil.
P0219	Overrun	Engine is overrunning.
P0222	Accelerator position sensor No. 2	Output from the accelerator position sensor is too low.
P0223	Accelerator position sensor No. 2	Output from the accelerator position sensor is too high.
P0227	PTO accelerator position sensor	Output from the PTO accelerator position sensor is too low.
P0228	PTO accelerator position sensor	Output from the PTO accelerator position sensor is too high.
P0234	Abnormally boost pressure	Boost pressure is excessive or insufficient.
P0237	Intake air pressure sensor	Output from the intake air pressure sensor is too low.
P0238	Intake air pressure sensor	Output from the intake air pressure sensor is too high.
P0251	Fuel leak	Fuel leak in the injection system or fuel system.
P0252	Pressure limiter	Pressure limiter is operating.
P0253	Abnormally high pressure 2	Output from the rail pressure sensor is over the higher upper limit.
P0254	Abnormally high pressure 1	Output from the rail pressure sensor is over the lower upper limit.
P0255	Supply pump	Rail pressure exceeds the specified duration or is over the specifiedvalue. (Specified speed range.)
P0256	Supply pump	Rail pressure exceeds the specified duration or is over the specified value (lower pressure and longer duration than PO255). (Medium tohigh speed range.)

DG Code	Source	Malfunction Outline
P0257	Supply pump	Poor pumping in the supply pump No. 1 cylinder.
P0335	Engine speed sensor	No signal output from the engine speed sensor.
P0340	TDC sensor	No signal output from the TDC sensor.
P0380	Glow relay	BATT short in the output to the glow relay. Open or GND short in theglow relay output.
P0500	Vehicle speed sensor	Open or short circuit in the vehicle speed sensor; frequency is toohigh; no output.
P0506	IMC volume	IMC volume signal is too low.
P0507	IMC volume	IMC volume signal is too high.
P0510	IDLE switch	IDLE switch is seized closed.
P0600	SLD system	Communication error between the vehicle speed control ECU andengine ECU or vehicle speed sensor.
P0605	CPU (in the engine ECU)	Main CPU malfunction or watchdog malfunction.
P0616	Starter prohibition relay	BATT short in the output to the starter prohibition relay.
P0617	Starter prohibition relay	Open circuit (external) or GND short in the output to the starter prohi-bition relay.
P1121	Intake throttle valve	Open circuit, GND short or BATT short in the output to valve MV1.
P1171	Injection correction resistance value	Injection correction resistance value is too low.
P1172	Injection correction resistance value	Injection correction resistance value is too high.
P1176	Maximum speed adjusting resistor	Adjusting resistor value is too low.
P1177	Maximum speed adjusting resistor	Adjusting resistor value is too high.
P1185	Engine stop switch	Engine stop switch is seized closed.
P1200	Injector COM2	COM2 is open or short circuited; or TWV2, TWV4 or TWV6 is open orshort circuited.
P1210	Capacitor charging circuit (ECU)	Malfunction in the injector drive power supply circuit (overcharging orinsufficient charging).
P1240	Fuel system 1	Large momentary fluctuations in No. 1 cylinder speed.
P1241	Fuel system 5	Large momentary fluctuations in No. 5 cylinder speed.
P1242	Fuel system 3	Large momentary fluctuations in No. 3 cylinder speed.
P1243	Fuel system 6	Large momentary fluctuations in No. 6 cylinder speed.
P1244	Fuel system 2	Large momentary fluctuations in No. 2 cylinder speed.
P1245	Fuel system 4	Large momentary fluctuations in No. 4 cylinder speed.
P1255	Output to SCV	Open circuit (external) in ECU terminal SCV+ or SCV-, GND short, oropen circuit in SCV coil.
P1256	Output to SCV	BATT short in ECU terminal SCV+ or SCV-.
P1257	SCV	SCV seizure.
P1262	Exhaust brake MV1	Open circuit or GND short in the output to MV1.
P1263	Exhaust brake MV1	BATT short in the output to MV1.
P1605	ECU	Malfunction in the flash memory.
P1930	Power retarder relay	Open circuit, GND short or BATT short in the output to the retarderrelay.

Mitsubishi Fuso Fighter 6M60 Engine Fault Codes list (DTCs)

Mitsubishi Fault Codes

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DG Code	Source	Malfunction Outline
P0107	Atmospheric pressure sensor	Output from the atmospheric pressure sensor is too low.
P0108	Atmospheric pressure sensor	Output from the atmospheric pressure sensor is too high.
P0112	Intake air temperature sensor	Output from the intake air temperature sensor is too low.
P0113	Intake air temperature sensor	Output from the intake air temperature sensor is too high.
P0117	Coolant temperature sensor	Output from the coolant temperature sensor is too low.
P0118	Coolant temperature sensor	Output from the coolant temperature sensor is too high.
P0121	Accelerator position sensor	Output from accelerator position sensors No. 1 and No. 2 is inconsistent.
P0122	Accelerator position sensor No. 1	Output from the accelerator position sensor is too low.
P0123	Accelerator position sensor No. 1	Output from the accelerator position sensor is too high.
P0187	Fuel temperature sensor	Output from the fuel temperature sensor is too low.
P0188	Fuel temperature sensor	Output from the fuel temperature sensor is too high.
P0191	Rail pressure sensor	Output from the rail pressure sensor is fixed at a middle value.
P0192	Rail pressure sensor	Output from the rail pressure sensor is too low.
P0193	Rail pressure sensor	Output from the rail pressure sensor is too high.
P0200	Injector COM1	COM1 is open or short circuited; or TWV1, TMV3 or TWV5 is open orshort circuited.
P0201	Injector TWV	Open circuit in the TWV1 wiring or injector coil.
P0202	Injector TWV	Open circuit in the TWV5 wiring or injector coil.
P0203	Injector TWV	Open circuit in the TWV3 wiring or injector coil.
P0204	Injector TWV	Open circuit in the TWV6 wiring or injector coil.
P0205	Injector TWV	Open circuit in the TWV2 wiring or injector coil.
P0206	Injector TWV	Open circuit in the TWV4 wiring or injector coil.
P0219	Overrun	Engine is overrunning.
P0222	Accelerator position sensor No. 2	Output from the accelerator position sensor is too low.
P0223	Accelerator position sensor No. 2	Output from the accelerator position sensor is too high.
P0227	PTO accelerator position sensor	Output from the PTO accelerator position sensor is too low.
P0228	PTO accelerator position sensor	Output from the PTO accelerator position sensor is too high.
P0234	Abnormally boost pressure	Boost pressure is excessive or insufficient.
P0237	Intake air pressure sensor	Output from the intake air pressure sensor is too low.
P0238	Intake air pressure sensor	Output from the intake air pressure sensor is too high.
P0251	Fuel leak	Fuel leak in the injection system or fuel system.
P0252	Pressure limiter	Pressure limiter is operating.
P0253	Abnormally high pressure 2	Output from the rail pressure sensor is over the higher upper limit.
P0254	Abnormally high pressure 1	Output from the rail pressure sensor is over the lower upper limit.
P0255	Supply pump	Rail pressure exceeds the specified duration or is over the specifiedvalue. (Specified speed range.)
P0256	Supply pump	Rail pressure exceeds the specified duration or is over the specified value (lower pressure and longer duration than PO255). (Medium tohigh speed range.)

DG Code	Source	Malfunction Outline
P0257	Supply pump	Poor pumping in the supply pump No. 1 cylinder.
P0335	Engine speed sensor	No signal output from the engine speed sensor.
P0340	TDC sensor	No signal output from the TDC sensor.
P0380	Glow relay	BATT short in the output to the glow relay. Open or GND short in theglow relay output.
P0500	Vehicle speed sensor	Open or short circuit in the vehicle speed sensor; frequency is toohigh; no output.
P0506	IMC volume	IMC volume signal is too low.
P0507	IMC volume	IMC volume signal is too high.
P0510	IDLE switch	IDLE switch is seized closed.
P0600	SLD system	Communication error between the vehicle speed control ECU andengine ECU or vehicle speed sensor.
P0605	CPU (in the engine ECU)	Main CPU malfunction or watchdog malfunction.
P0616	Starter prohibition relay	BATT short in the output to the starter prohibition relay.
P0617	Starter prohibition relay	Open circuit (external) or GND short in the output to the starter prohi-bition relay.
P1121	Intake throttle valve	Open circuit, GND short or BATT short in the output to valve MV1.
P1171	Injection correction resistance value	Injection correction resistance value is too low.
P1172	Injection correction resistance value	Injection correction resistance value is too high.
P1176	Maximum speed adjusting resistor	Adjusting resistor value is too low.
P1177	Maximum speed adjusting resistor	Adjusting resistor value is too high.
P1185	Engine stop switch	Engine stop switch is seized closed.
P1200	Injector COM2	COM2 is open or short circuited; or TWV2, TWV4 or TWV6 is open orshort circuited.
P1210	Capacitor charging circuit (ECU)	Malfunction in the injector drive power supply circuit (overcharging orinsufficient charging).
P1240	Fuel system 1	Large momentary fluctuations in No. 1 cylinder speed.
P1241	Fuel system 5	Large momentary fluctuations in No. 5 cylinder speed.
P1242	Fuel system 3	Large momentary fluctuations in No. 3 cylinder speed.
P1243	Fuel system 6	Large momentary fluctuations in No. 6 cylinder speed.
P1244	Fuel system 2	Large momentary fluctuations in No. 2 cylinder speed.
P1245	Fuel system 4	Large momentary fluctuations in No. 4 cylinder speed.
P1255	Output to SCV	Open circuit (external) in ECU terminal SCV+ or SCV-, GND short, oropen circuit in SCV coil.
P1256	Output to SCV	BATT short in ECU terminal SCV+ or SCV-.
P1257	SCV	SCV seizure.
P1262	Exhaust brake MV1	Open circuit or GND short in the output to MV1.
P1263	Exhaust brake MV1	BATT short in the output to MV1.
P1605	ECU	Malfunction in the flash memory.
P1930	Power retarder relay	Open circuit, GND short or BATT short in the output to the retarderrelay.

Mitsubishi Fuso Fighter ECU Related

External Wiring Diagram

Terminal layout

Terminal Symbol Explanation

Terminals No. 1 to 34

No.	Terminal Name	Signal Name	No.	Terminal Name	Signal Name
1	–	–	18	CASEGND	Case ground
2	–	–	19	KWP2000	MUT-3
3	–	–	20	–	–
4	–	–	21	AD1	Accelerator position sensor 1
5	+B	+VB	22	AD2	Accelerator position sensor 2
6	+B	+VB	23	–	–
7	+B	+VB	24	–	–
8	TAC1	Tachometer signal	25	AD19	Temperature sensor 4 for after-treat-ment (following EGR merging).
9	TAC2	NE OUT	26	AD20	N correction resistor
10	POUT1	Development output (Q-OUT)	27	VS1	Vehicle speed sensor
11	POUT2	PWMACC	28	–	–
12	–	–	29	–	–
13	–	–	30	AD14	IMC volume
14	–	–	31	AD15	PTO accelerator position sensor
15	–	–	32	–	–
16	–	–	33	–	–
17	–	–	34	–	–

Terminals No. 35 to 69

No.	TerminalName	Signal Name	No.	TerminalName	Signal Name
35	+BF	SURGE OUT 1	53	SW7	Air conditioning switch
36	–	–	54	A-GND4	Sensor GND4
37	–	–	55	A-GND5	Sensor GND5
38	–	–	56	SW1	Key switch
39	NE-SLD	NE-SLD	57	A-VCC4	Sensor power supply 4
40	NE+	Engine speed sensor +	58	SW8	Neutral switch
41	NE-	Engine speed sensor –	59	SW10	Warm-up switch
42	–	–	60	–	–
43	OUT2	Relay to prevent continuous starterenergization.	61	SW17	Accelerator switch

No.	Terminal Name	Signal Name	No.	Terminal Name	Signal Name
44	–	–	62	AD21	Quantity correction resistor
45	–	–	63	–	–
46	SW1	Key switch	64	–	–
47	–	–	65	–	–
48	SW2	Starter switch	66	SW9	PTO switch
49	SW3	Exhaust brake switch	67	SW11	AT recognition switch
50	–	–	68	SW16	Diagnosis switch
51	SW5	Idle-up cancel switch	69	–	–
52	SW6	Clutch switch 1

Terminals No. 70 to 101

No.	TerminalName	Signal Name	No.	TerminalName	Signal Name
70	OUT19	Glow relay actuation relay	86	–	–
71	–	–	87	–	–
72	GND	ECU analog GND	88	–	–
73	GND	ECU analog GND	89	–	–
74	OUT17	ECU main relay	90	–	–
75	OUT18	ECU main relay	91	–	–
76	+BF	SURGE OUT 2	92	–	–
77	SW27	Diagnosis memory clear switch	93	–	–
78	–	–	94	–	–
79	–	–	95	–	–
80	SW15	Exhaust brake cut switch	96	–	–
81	–	–	97	–	–
82	S-OUT1	Diagnosis light 1 (red)	98	–	–
83	S-OUT2	Diagnosis light 2 (orange)	99	–	–
84	S-OUT3	Glow light	100	–	–
85	S-OUT4	Exhaust brake light	101	–	–

Terminals No. 102 to 136

No.	TerminalName	Signal Name	No.	TerminalName	Signal Name
102	P-GND	POWER GND	120	G	G sensor +
103	TWV1	Injector drive signal 1	121	AD4	Rail pressure sensor 1
104	TWV3	Injector drive signal 3	122	–	–
105	TWV5	Injector drive signal 5	123	A-VCC3	Sensor power supply 3
106	COMMON1	Injector drive power supply 1-1	124	–	–
107	COMMON1	Injector drive power supply 1-2	125	A-VCC2	Sensor power supply 2
108	–	–	126	A-VCC1	Sensor power supply 1
109	–	–	127	–	–

No.	Terminal Name	Signal Name	No.	Terminal Name	Signal Name
110	–	–	128	AD3	Boost sensor
111	OUT12	Exhaust brake MV1	129	–	–
112	–	–	130	–	–
113	–	–	131	G-GND	G sensor
114	–	–	132	AD5	Rail pressure sensor 2
115	–	–	133	G-VCC	CAM ANGLE VCC (5V)
116	–	–	134	A-GND1	Sensor GND1
117	–	–	135	A-GND2	Sensor GND2
118	–	–	136	A-GND3	Sensor GND3
119	–	–

Terminals No. 137 to 167

No.	TerminalName	Signal Name	No.	TerminalName	Signal Name
137	TWV2	Injector drive signal 2	153	–	–
138	TWV4	Injector drive signal 4	154	AD6	Intake air temperature sensor (before
139	TWV6	Injector drive signal 6	155	AD7	Coolant temperature sensor
140	P-GND	POWER GND	156	–	–
141	P-GND	POWER GND	157	CAN1H	CAN1 HIGH
142	COMMON2	Injector drive power supply 2-1	158	CAN1L	CAN1 LOW
143	COMMON2	Injector drive power supply 2-2	159	–	–
144	SCVLO	HP3 and HP4 suction control valvedrive signal 1	160	–	–
145	SCVLO	HP3 and HP4 suction control valvedrive signal 2	161	–	–
146	SCVHI	HP3 and HP4 suction control valvepower supply 1	162	AD8	Fuel temperature sensor 1 (leak side)
147	SCVHI	HP3 and HP4 suction control valvepower supply 2	163	AD9	Fuel temperature sensor 2
148	–	–	164	–	–
149	–	–	165	–	–
150	–	–	166	–	–
151	–	–	167	–	–
152	–	–