Circuit 87 in Front SAM won't works

[boonyen]

hello everyone, I having problem that the relay 87 N10/1kN won't turn On
-Engine ECU ok(SIM271 DE)
-key can turn on but won't crank since no current 87 for engine ecu
-Front SAM tested on others car can crank
-Wire hardness no short / open circuit
-made a new key and clone a ezs

but the relay 87 just won't switch On unless you bypass it with a wire and the car can start and run normally

Can someone help me what is the requirement to make the circuirt 87 run?

 

[IKY786]

Hi... have you checked coding is correct... maybe looking for clutch switch

 

[boonyen]

its auto transmission

 

[IKY786]

has any controls units been updated with autel etc?

 

[boonyen]

has any controls units been updated with autel etc?

no, nothing done yet

 

[IKY786]

i would say get WIS get a wiring diagram and check all wiring agian... also check actual values in

EZS ECU SAM VGS

 

[EduardNN]

Write what car you have - I'll look at the diagram. See if there is moisture in the F-SAM, a common problem is water ingress.

 

[nae257092]

internal engine ecu issues

 

[planet7592]

have you checked coding is correct, if not internal engine ecu issues

 

[boonyen]

The problem solved, it got 2 failure, one is the connector of engine ecu not touch to the ecu pin, it has to be someone test the connector using big needle pin of multimeter and make the connector loose, the second failure is the ecu, its pin 50 didn't supply gounding to the relay N of front SAM.