Bosch diesel electronic injection high-pressure common rail system fault codes (I)

by MOU YONG HONG on December 01, 2021

All fuel injectors will wear out during use, and some malfunctions will occur. But most of the faults are minor faults, and some error codes will also appear. If we do not understand these Bosch diesel EFI high-pressure common-rail systems, it is just a small problem and it will consume a lot of time. Therefore, we understand some Bosch diesel EFI high-pressure common-rail systems, which is very important for us.

Serial number	Fault Code	Description
1	0	The exhaust brake valve feedback does not match the ECU control command
2	P0016	Relative position deviation of phase sensor and crankshaft sensor
3	P0045	Open circuit of turbocharger actuator control line
4	P0046	Overheating of the ECU internal drive module of the turbocharger actuator control line
5	P0047	Supercharger actuator control wire is shorted to ground
6	P0048	Supercharger actuator control line is shorted to high level
7	P0069	Boost pressure sensor drift
8	P0071	The ambient temperature sensor signal from CAN is invalid
9	P0072	The output voltage of the ambient temperature sensor exceeds the lower limit (the wiring is short-circuited to the ground)
10	P0073	The output voltage of the ambient temperature sensor exceeds the upper limit (open circuit or short circuit to high level)
11	P0087	Fuel pressure is below the minimum limit
12	P0088	Fuel pressure exceeds the maximum limit
13	P0097	The intake air temperature sensor voltage is too low (the wiring is shorted to the ground)
14	P0098	The intake air temperature sensor voltage is too high (open circuit or short circuit to high level)
15	P0100	The uncorrected air mass flow signal measured by the air flow meter is too large or too small (open circuit or short circuit)
16	P0101	The corrected air mass flow signal measured by the air flow meter is too large or too small
17	P0102	Air mass flow meter negative drift
18	P0103	Positive drift of air mass flow meter
19	P0104	Air mass flow meter zero drift
20	P0110	The connection of the additional air temperature sensor on the air mass flow meter is shorted or open
21	P0112	The additional air temperature sensor on the air mass flow meter measured the temperature too low
22	P0113	The additional air temperature sensor on the air mass flow meter measured the temperature too high
23	P0115	The cooling water temperature signal from CAN is invalid
24	P0116	Unreliable dynamic characteristics of water temperature sensor
25	P0117	The output voltage of the cooling water temperature sensor is lower than the lower limit (the connection is short-circuited to the ground)
26	P0118	The output voltage of the cooling water temperature sensor is higher than the upper limit (open circuit or short circuit to high level)
27	P0122	The output voltage of accelerator pedal potentiometer 1 exceeds the lower limit
28	P0123	The output voltage of accelerator pedal potentiometer 1 exceeds the upper limit
29	P0128	The static characteristics of the water temperature sensor cannot be trusted
30	P0182	The output voltage of the fuel temperature sensor is too low (the wiring is short-circuited to the ground)
31	P0183	The output voltage of the fuel temperature sensor is too high (open circuit or short circuit to high level)
32	P0191	The rail pressure sensor drifts too much forward
33	P0192	The output voltage of the rail pressure sensor is higher than the lower limit (the wiring is shorted to the ground)
34	P0193	The output voltage of the rail pressure sensor is higher than the upper limit (open circuit or short circuit to high level)
35	P0194	Rail pressure sensor drifts too much in the negative direction
36	P0195	The oil temperature signal transmitted from CAN is invalid
37	P0197	The output voltage of the oil temperature sensor is lower than the lower limit
38	P0198	The output voltage of the oil temperature sensor is higher than the upper limit
39	P02011	Cylinder injector open circuit
40	P02022	Cylinder injector open circuit
41	P02033	Cylinder injector open circuit
42	P02044	Cylinder injector open circuit
43	P02055	Cylinder injector open circuit
44	P02066	Cylinder injector open circuit
45	P0222	The output voltage of accelerator pedal potentiometer 2 exceeds the lower limit
46	P0223	The output voltage of accelerator pedal potentiometer 2 exceeds the upper limit
47	P0234	The actual boost pressure is too large relative to the control target
48	P0235	The boost pressure signal from CAN is invalid
49	P0237	The output voltage of the boost pressure sensor exceeds the lower limit (the wiring is short-circuited to the ground)
50	P0238	The output voltage of the boost pressure sensor exceeds the upper limit (open circuit or short circuit to high level)
51	P0251	The metering unit control line is open
52	P0252	The internal driving circuit of the ECU of the metering unit is overheated
53	P0253	The control line of the metering unit is shorted to ground
54	P0254	The metering unit control line is shorted to high level
55	P025C	No use
56	P025D	No use
57	P0261	1 cylinder injector low end and high end short circuit
58	P0262	1 cylinder injector low end and high level short circuit
59	P0263	1 cylinder injector other errors
60	P0264	Short circuit between low end and high end of the 2-cylinder injector
61	P0265	The low end of the 2-cylinder injector is shorted to the high level
62	P0266	2 cylinder injector other errors
63	P0267	Short circuit between low end and high end of the 3-cylinder injector
64	P0268	Short circuit between the low end of the 3-cylinder injector and the high level
65	P0269	3 cylinder injector other errors
66	P0270	4-cylinder injector low-end and high-end short circuit
67	P0271	4-cylinder injector low-end and high-level short circuit
68	P0272	4 cylinder injector other errors
69	P0273	Short circuit between low end and high end of 5-cylinder injector
70	P0274	Short circuit between the low end of the 5-cylinder injector and the high level
71	P0275	5 cylinder injector other errors
72	P0276	Short circuit between low end and high end of 6-cylinder injector
73	P0277	6-cylinder injector low-end and high-level short circuit
74	P0278	6 cylinder injector other errors
75	P0299	The actual boost pressure is too small relative to the control target
76	P0300	Multi-cylinder misfire
77	P0301	Misfire in the first cylinder
78	P0302	Misfire in the second cylinder
79	P0303	Misfire in the third cylinder
80	P0304	Misfire in the fourth cylinder
81	P0305	Misfire in the fifth cylinder
82	P0306	6th cylinder misfire
83	P0335	No crankshaft sensor signal
84	P0336	Incorrect crankshaft sensor signal
85	P0340	No phase sensor signal
86	P0341	Wrong phase sensor signal
87	P0380	ECU does not request the glow plug to work, but the glow plug actually works
88	P0382	ECU requests the glow plug to work, but the glow plug does not actually work
89	P0383	The control wire of ECU to glow plug is shorted to ground
90	P0384	The control line of ECU to glow plug is shorted to high level
91	P0401	The actual intake of fresh air is greater than the target intake set by the EGR system
92	P0402	The actual intake of fresh air is less than the target intake set by the EGR system
93	P0403	The ECU internal drive module of the EGR valve actuator control line is overheated
94	P0404	EGR valve actuator control line is open
95	P0405	The EGR valve position sensor voltage exceeds the lower limit (the wiring is short-circuited to the ground)
96	P0406	The EGR valve position sensor voltage exceeds the upper limit (open circuit or short circuit to high level)
97	P0475	Exhaust brake valve control line is open
98	P0476	ECU internal drive module for exhaust brake valve control line
99	P0477	Exhaust brake valve control line is shorted to ground
100	P0478	The exhaust brake valve control line is shorted to high level