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Nissan 350z Link G4+ ABS problems

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Hello! I have link G4+ in nissan 350z and i have ABS warning lighton, when car is moving. I can erase errors in static car, but they comes up, when car is driving. I see errors C1132 and C1111 in my abs diagnostic menu, also i see all wheel sensors is working in abs menu and in Link G4+ software. We check connectors of ABS module and than we replase it, Same situation. Asking for help withn this case.

C1132 NISSAN - Engine Signal 3 Share

Possible causes
- Faulty 
Engine Control Module (ECM)
- Faulty ABS actuator and electric unit (control unit)
- Control Area Network (CAN) communication line
- Blown ECM fuses

Tech notes The code means that the Anti-Lock Brake System (ABS) control unit has detected that there is problem with the Engine Control Module (ECM).

When is the code detected? Based on the signal from 
Engine Control Module (ECM), the Control Area Network (CAN)-Local Area Network (LAN) converter (CLC) judges that the engine control system is malfunctioning.

Possible symptoms - ABS Warning Light ON - Scanner cannot access Engine Control Module (ECM) C1132 Nissan Description ABS actuator and electric unit (control unit) and ECM exchange the engine signal with CAN communication line. Major engine components are malfunctioning.

 

can nissan.png

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If this is a plug in unit, i would stick the stock ecu back in and see if there is any change.  

May be easier to diag the abs fault with the stock ecu present.

Im very interested in the outcome here as im busy with a rather standalone build with the 350z abs system.

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If I had to guess there's an output CAN msg from the ECU that it's expecting when it's in motion. Engine running, RPM, something.

Do you have capability of datalogging the CANbus with the stock ecu in place?

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Sera, this sounds like a problem we have seen before.  It seems there are some specific 350Z's where the ABS ecu throws a wobbly if it doesnot get an acknowledge from the engine ecu within a few mS of power up.  It is thought the Link ECU takes slightly longer than the factory ECU to send out CAN messages after boot up.  It seems rare but I remember seeing 2 or 3 cases in the few years I worked for Link.  

The fix is to wire a relay in to the ABS ecu power supply wiring, so during cranking the ABS ecu power is cut - it then reboots, gets its acknowledge from the engine ecu straight away and is all happy.  I will PM you a document describing what needs to be done. 

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Hi Adam could you also send me this document I've been meaning to sort out this issue on mine for ages but it's not been a priority just a mild irritation 

Thanks

:)

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5 hours ago, Adamw said:

Sera, this sounds like a problem we have seen before.  It seems there are some specific 350Z's where the ABS ecu throws a wobbly if it doesnot get an acknowledge from the engine ecu within a few mS of power up.  It is thought the Link ECU takes slightly longer than the factory ECU to send out CAN messages after boot up.  It seems rare but I remember seeing 2 or 3 cases in the few years I worked for Link.  

The fix is to wire a relay in to the ABS ecu power supply wiring, so during cranking the ABS ecu power is cut - it then reboots, gets its acknowledge from the engine ecu straight away and is all happy.  I will PM you a document describing what needs to be done. 

Yes, we tested relay and it doesn't power the ABS motor. We will do what u wrote in e-mail and i'll wright here the result. I think, everything will work.

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19 hours ago, Brad Burnett said:

would it be possible to use a spare aux out to control the relay for the ABS system with a gp out that controls the relay with engine run time >= x seconds?

There is no reason why that wouldnt work, however there is no relay in the OEM set up, it gets its power direct from the PDM/BCM.

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9 hours ago, Adamw said:

There is no reason why that wouldnt work, however there is no relay in the OEM set up, it gets its power direct from the PDM/BCM.

Car im working with, im going to attempt to use the ABS system in a standalone application with the G4+ xtreme talking to it over can for wheel speeds.

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