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Vz_ace

XU9J4 tester connection

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Vz_ace

Hello.

 

I am wondering if there is anywhere a socket for tester connection  for reading error cpdes?

Where is that location and how does it look like? Any photo will be appreciated;).

 

Are there any universal testers to do that? Could you reccomend anyone?

 

oh yes- i have previosly converted 205 gti with p30916v 160 PS engine in it.

 

I just want to go through testing procedure, because i susspect it becomes lazy when hot....(does not pull at it should

 

 

many thanks,

Vladimir

 

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SRDT

It is probably too old for universal testers but it's all basic blink codes so it's not hard to make you own tester with a switch and a bit of wire.

Is it a 35 or 55 pin ECU?

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petert

Definitely. Here's a pic from the Motronic 1.3 manual I've posted previously. All you need is a momentary switch to make contact with the two wires in M720. Let me know if you can't find it and I'll email it to you.

Screenshot 2025-02-25 at 8.28.11 am.png

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petert

The code sequence is identical for Motronic 1.3 or 4.1

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Vz_ace

thx Petert. Because i am not very experienced with this, i am asking for fine procedure.;) If i understand correctly, i must put  a switch between m720 (where exactely it is located?), then i check some light blinking on the dashboard (like vauxhall error checking procedure?

where can ii find error code list?

 

my email: vz_ace@yahoo.com

 

thank you!

 

ps- is this maybe  it:

 

 

Peugeot Reading codes

P-DTC.JPG

  1. Connect a switched jumper to wire 17 of connector M720 which is the green 2 pin connector. Connect the other terminal of the switched jumper to a good ground source.

  2. Turn the ignition switch to the "RUN" (ON) position.

  3. Close the switched jumper for 3 seconds. The "CHECK ENGINE"

indicator will come on. Open the "switched jumper" and the "CHECK ENGINE" indicator will:

  1. Blink once for: 1__ (tens)

  2. Remain off for: 1.5 seconds

  3. Blink twice for: __2 (units)

Thus, a code 12 which indicates the beginning of the "TEST" sequence has been displayed.

  1. Wait for the "CHECK ENGINE" light to come on continuously.

  2. Close the switched jumper for 3 seconds. The "CHECK ENGINE"

indicator will come on. Open the "switched jumper" and the "CHECK ENGINE" indicator will:

  1. Blink (tens)

  2. Remain off for: 1.5 seconds

  3. Blink (units)

Remember the first set of flash codes is the (tens) and the second set of flash codes is the (units). The combination of the (tens)+(units) is the displayed fault code. Take note of all the stored codes.

  1. Repeat steps 4 and 5 until a code 11 is displayed. Up to 5 codes may be stored in the fault memory. Code 11 signals the end of the test sequence and there are no other codes stored. Refer to the fault code chart.

  2. Repair the indicated faults or repeat the test. Be sure to disconnect the "switched jumper" and turn the ignition switch to the "OFF" position before attempting repairs. Disconnecting components and wiring harness connectors with the ignition switch in the "RUN" (ON) position may set additional codes and cause permanent damage to the Motronic system.

  3. To erase the fault code memory turn the ignition switch to the "RUN" (ON) position.

    1. Perform a test sequence up to a code 11

    2. Depress the switched jumper for more than 10 seconds

The "CHECK ENGINE" indicator should be "ON" and all fault codes should have been cleared.

11

End of Test Sequence.

12

Beginning of Test Sequence.

13

Air Temperature Sensor.

14

Injection NTC Sensor.

15

Fuel Pump(s) Relay.

21

Throttle Switch (Idle Position).

22

Idle Regulation Electro-valve.

31

Self-Correction Richness Regulation.

32

Self-Correction Richness Regulation.

33

Air Flow Sensor.

34

Canister Purge Electro-valve.

35

Throttle Switch Unit (Full Load Position).

41

Engine RPM Sensor.

42

Injectors.

43

Detonation Sensor Regulation.

44

Detonation Sensor.

51

Self-Correction Richness Regulation.

52

Self-Correction Richness Regulation.

53

Battery Voltage.

54

Electronic Control Unit.

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SRDT

The LED will be usefull if the light on the dash isn't wired, it depends how much 309 wiring was used for the swap.

 

35 pin ML4.1:

http://www.ckc.dk/pubs/XU9J4-Controle_Reglage_Diagnostic.pdf

 

It looks like the 55 pin ML1.3 at a glance but i's not the same pin on the connector. The old Peugeot tester (TAD99) had a switch on the side just to use it with the ML4.1 Motronic.

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Vz_ace

thanks for the document. it looks very useful! now i have to translate it somehow....;)

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Vz_ace

So,  i have few more questions about:

 

1. where is located that m720 connector or pluged-on, that i wont search for it too long....;)

2. would simple 12V probe lamp dp the job?

3. what is the error codes reading procedure and where ca i find the complete error codes list?

 

sorry, but iam a noob here...;)

 

cheers

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SRDT

35 or 55 pin ECU ?

The loom is probably from the same 309 but could also be from a 405 or BX, it could even be a 55 pin 1.9 122hp GTI loom with just a few wires added.

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welshpug
23 hours ago, Vz_ace said:

So,  i have few more questions about:

 

1. where is located that m720 connector or pluged-on, that i wont search for it too long....;)

2. would simple 12V probe lamp dp the job?

3. what is the error codes reading procedure and where ca i find the complete error codes list?

 

sorry, but iam a noob here...;)

 

cheers

Everything you need is already posted here.

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