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Isuzu truck fault codes list

ISUZU Truck Service Manuals

Read codes

1) Turn the ignition ON, without starting the engine.

2) Connect leads 4 and 6 of the diagnostic socket under the instrument panel.

3) Read the codes by the number of flashes of the indicator "CHECK ENGINE".

In the absence of malfunctions, the indicator lights up for 0.4 seconds with an interval of 3.2 seconds - the code of the norm (01) is displayed.

Isuzu truck fault codes list

Isuzu truck fault codes list.pdf

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If there is a malfunction, the indicator flashes at intervals of 0.4 seconds. The first sequence of flashes corresponds to the first number of the diagnostic code consisting of two digits.

After a pause of 1.2 seconds, a second sequence of flashes corresponding to the second number of code is output. The same code is output three times in a row with an interval of 3.2 seconds. The next fault code (if present) is similarly displayed three times in succession following the previous one. After the last code is output, the process is repeated again.

Resetting codes

1) Turn the ignition OFF.

2) Connect leads No. 4 and No. 6 of the diagnostic connector.

3) Move the gearbox control lever to a position other than "P" or "N".

4) Switch on the ignition and press the accelerator / brake pedals alternately within 3 seconds.

Fault codes

Code	System	CE
01	Norm	-
11	Speed sensor-operation, breakage or short circuit in circuit	-
13	Limit switch idling-operation, breakage or short circuit in circuit	+
14	Coolant temperature sensor-operation, breakage or short circuit in circuit	+
15	Fuel temperature sensor is functioning, open circuit or short circuit in circuit	-
21	Throttle position sensor-open circuit or short circuit in circuit	+
22	Control valve of angle injection-operation, open circuit or short circuit in circuit	+
23	Intake air temperature sensor-operation, breakage or short circuit in circuit	-
24	Absolute pressure sensor in the intake manifold-functioning, open circuit or short circuit in circuit	+
25	Adjustment resistor-open circuit or short circuit in circuit	-
26	Barometric pressure Sensor-operation, breakage or short circuit in circuit	-
27	Fuel supply control valve (FCV)-short circuit on the weight	+
31	Regulator-functioning, open circuit or short circuit in circuit	+
32	Piston position sensor injection machine-operation, breakage or short circuit in circuit	+
33	Limit switch open circuit	+
34	Dosing position sensor coupling-operation, breakage or short circuit in circuit	+
41	Crankshaft rotation speed sensor-operation, breakage or short circuit in circuit	+
42	Backup speed sensor crankshaft	-
44	Electronic control unit-error in memory	+
54	Limit switch machine piston injection (start)-open circuit	+

Title	File Size	Download Link
Isuzu truck fault codes list.pdf	271.5kb	Download
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Comments: 13

#13
Brian Smith (Thursday, 25 November 2021 03:19)

how to reset service engine soon light
#12
Angie Willoughby (Friday, 12 November 2021 06:57)

Hi, I have a 2006 FRR that is flashing a code 316. Can you help me please?
#11
Lyn camam (Sunday, 30 May 2021 10:09)

I have a 316 code on isuzu frr500 truck showing what does this mean
#10
Luke Peter (Thursday, 08 April 2021 09:05)

I Have a ISUZU Truck FVZ 260 300 and would like to have the wiring diagram for for Ignition and Starting System Circuit. Could you please assist. I could not start the truck.
#9
Nest Reyes (Sunday, 24 January 2021 04:40)

I Have Isuzu Elf Double Mode Truck with 4HJ1 Engine..
I Have An Launch X-431 Scanner But Couldn't Engage With Isuzu Datalink.
I Did The Jumper Procedure Connecting Terminals 4 and 6 and it shown Fault Code 12..How To Clear The Code.?
#8
Jennie Rutherford (Tuesday, 01 December 2020 04:13)

ASR light keeps coming on but its random. CO235
also P0401
#7
Jacky (Sunday, 15 November 2020 15:19)

Isuzu 150 NLR 2 ton truck ABS light remains on. How do I manually reset it
#6
Nason somi (Friday, 23 October 2020 07:58)

Isuzu truck fvd hard start. If possible any troubleshooting advice
#5
Zubair (Monday, 19 October 2020 17:30)

Isuzu 5 ton truck is meter is not working in rpm" speed meter"fuel gauge and temp gauge is not wath this porblm
#4
cesarjorge (Saturday, 12 September 2020 17:36)

exelente explicacion muy interesante
#3
Raswanto (Monday, 31 August 2020 10:05)

Lampu indikator Deket lampu (P) warna kuning menyala saat tarikan gigi ke tiga
#2
Ganzorig (Wednesday, 01 July 2020 20:52)

Hi i need suport . I found DTC P1671 or Flash code 418
what does it mean ? my vehicle Isuzu Forward FRR35 Truck For 5 ton made in Japan.

The check engine light is currently on.
Please help. my email : ganzorig60@gmail.com
#1
Abdullah (Thursday, 13 February 2020 07:52)

Great to improve my experianse

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