Fault codes on 400.

[jeff t]

Fault codes stored in the memory Data Link , can be accessed without
any specail tools or equipment .
The Data Link is located on the inner wing top next to the air filter, it is
black and about 2in square.
The process for accessing , reading and erasing is follows:

Trouble codes are displayed by the LED on the data link connector.

Accessing.

Open data link cover.
Insert system selector cable ( which is stored in cover top ) into socket 2.
Switch ignition on .
Press test button for 0.5 to 1 second.
Count LED flashes.
Note trouble codes. Compare with trouble code table. ( in the attachment
with this ).
Trouble codes consist of a sequence of three groups of flashes.
A 3 second pause seperates each group.
For example
1 flash 3sec pause 2 flashes 3 sec 1 flash
This = a code of 121.

Trouble codes must be accessed and faults rectified before codes can be
erased.

Erasing.

Open data link connector cover.
Insert system selector cable in socket 2.
Switch ignition on .
Press test button for 5 seconds minimum.
Release button. Wait until LED illuminates.
Press button again for 5 seconds minimum.
Ensure trouble codes have been erased.
The ECM fault memory can also be erased by diconnecting the battery.

Hope this is of use to some one .
again the list of codes are in the attachment.

I can`t find the attachment where the fault codes are in this tread. Can you please post them again? That would help me alot.

[the hoff]

Originally Posted by norway460

I can`t find the attachment where the fault codes are in this tread. Can you please post them again? That would help me alot.

Flash type. probable cause.
111. no fault found
112 . engine control module (ecm). ECM.
113 . injector(s)-faulty signal. wiring open circuit.
121 . manifold absolute pressure wiring,vacuum hose blocked,
(map) sensor-signalm error. split, MAP sensor.
122. intake air temp (IAT)sensor wiring,IAT sensor.
signal error.
123. engine coolant temp sensor wiring , ETC sensor.
signal error.
132. battery voltage. wiring,alt,battery or relay.
143. knock sensor-signal error/ wiring, knock sensor.
signal absent.
211. mixture adjustment resistor. wiring,mixture adjustment
resistor.
212. heated oxygen sensor-signal wiring, fuses, oxygen sensor
error/or absent. heater or fuel pressure.
214. crankshaft possition sensor. wiring, CKP sensor.
222. engine control relay-no voltage wiring, engine control relay.
to ECM pin 20 .
223. idle speed control-signal error. wiring short or open circuit.
231. heated oxygen sensor,signal wiring, fuses, oxygen sensor
error part load range. fuel pressure.
232. heated oxygen sensor, signal wiring , fuses, oxygen sensor
error idling. fuel pressure.
243. throttle position sensor wiring, cable adjustment
signal error. TP sensor.
244. knock sensor-ignition control limit wiring, KS , fuel quality
reached. combustion fault.
311. vehicle speed sensor (VSS) wiring , VSS.
411. throttle position sensor wiring, cable adjustment,
signal error. TP sensor, ECM.
412. TP sensor - signal to multi- wiring, TP sensor, ECM.
function control module

Originally Posted by the hoff

Flash type. probable cause.
111. no fault found
112 . engine control module (ecm). ECM.
113 . injector(s)-faulty signal. wiring open circuit.
121 . manifold absolute pressure wiring,vacuum hose blocked,
(map) sensor-signalm error. split, MAP sensor.
122. intake air temp (IAT)sensor wiring,IAT sensor.
signal error.
123. engine coolant temp sensor wiring , ETC sensor.
signal error.
132. battery voltage. wiring,alt,battery or relay.
143. knock sensor-signal error/ wiring, knock sensor.
signal absent.
211. mixture adjustment resistor. wiring,mixture adjustment
resistor.
212. heated oxygen sensor-signal wiring, fuses, oxygen sensor
error/or absent. heater or fuel pressure.
214. crankshaft possition sensor. wiring, CKP sensor.
222. engine control relay-no voltage wiring, engine control relay.
to ECM pin 20 .
223. idle speed control-signal error. wiring short or open circuit.
231. heated oxygen sensor,signal wiring, fuses, oxygen sensor
error part load range. fuel pressure.
232. heated oxygen sensor, signal wiring , fuses, oxygen sensor
error idling. fuel pressure.
243. throttle position sensor wiring, cable adjustment
signal error. TP sensor.
244. knock sensor-ignition control limit wiring, KS , fuel quality
reached. combustion fault.
311. vehicle speed sensor (VSS) wiring , VSS.
411. throttle position sensor wiring, cable adjustment,
signal error. TP sensor, ECM.
412. TP sensor - signal to multi- wiring, TP sensor, ECM.
function control module

I guess this is the fault codes for socket 2. Do you have the fault codes for socket 6? I have codes for socket 1, 3 and 7.

[jeff t]

I might be able to find them but need to know , year model and engine
type first.

Originally Posted by jeff t

I might be able to find them but need to know , year model and engine
type first.

I have a Volvo 460 2.0 I GL. 1993 mod.

Originally Posted by jeff t

I might be able to find them but need to know , year model and engine
type first.

You don`t have to find the codes. On my car only socket 2 and 3 are connected to the rest of the electric system.
But I got som fault codes out of socket 2: 122, 223 and 311.

The problem is when I get between 3000 and 4000 RPM, the engine don`t get anough fuel (I think) Any solutions?

(please excuse my bad english... )

[jeff t]

Two of these are air related so could be air problem.
But check throttle position sensor as this shows up on most poor running
problems.

Try clearing the fault codes and give the car a run and check fault codes
again to see if any have returned.

Originally Posted by jeff t

Two of these are air related so could be air problem.
But check throttle position sensor as this shows up on most poor running
problems.

Try clearing the fault codes and give the car a run and check fault codes
again to see if any have returned.

I tryed to erase the codes, but they are still there.
How do i do it? I tryed to do like you wrote in the beginning of this tread, but after pushing the butten for minnimum 5 sec the first time, the LEd will not light. How long must I wait until it lights?

[jeff t]

It should light up after about 5 seconds after releasing the buttton.
Hold button down for about 10 seconds max, make sure ignition is on.
Keep trying it will work.