problem Jaguar KJ6 no cranking

[autobenz]

Hello Guy's please can anyone advising me to solve a problem with Jaguar XJ6 4.0 MY 1995

The problem is the engine doesn't cranking, it is starting and working if I use external cable to supply power to starter motor

The car didn't have Immoblisier
there are some functions didn't work like the head light, turn signal light,Hazard warning and radio caset. the center lock by remote only unlocking and doesn't locking

there are a control module under the clove box it is name BPM (( body process module )) I replace it also the same problem when I disassemble the connectors of this module the center lock working fine unlock and lock by remote

by the way there are no recorded DTC in engine control the other control unit I can't diagnosis it.

so dose anyone have experience same this problem or know anything about.

Best regards
Fahed

[Ashraf6119]

Hi

Have you checked the starter relay and its fuse :questionmark:........Also the Ignition Switch it self can also be faulty so, worth checking all this things first before you start replacing other parts.......


Ash

[autobenz]

Hi

Have you checked the starter relay and its fuse :questionmark:........Also the Ignition Switch it self can also be faulty so, worth checking all this things first before you start replacing other parts.......


Ash



thank you my friend for replay.... yes I have checked all the component you mentioned

the ignition switch working well and it send start signal to the BPM (( body process module )) the signal can't crossing from this module as I mention before I have replace this module also the same problem

please if anyone expert in jaguar.... did this car have a second securty system ..... I programmed the remote twice but also the car didn't working and the center lock by remote only unlock and didn't lock also didn't work by the lock & unlock button on dashboard


Kind regards
Fahed

[Liteace]

Is this Jag an auto, have you checked the gearbox inhibitor switch for the starting problem

[autobenz]

Is this Jag an auto, have you checked the gearbox inhibitor switch for the starting problem


Thank you for replay mate yes I have checked the inhibitor switch it is working well.

my friend please I want draw your attention about something
the start signal come from ignition switch to BPM go to inhibitor switch flow to starter relay and starter motor

the start signal is broken when is input to the BPM
but as I told you I replace this module and also the same problem, is there are any other module give a signal to BPM to motivating this module to work
the vehicle step inside something like locked mode or come in sleep mode I know this car is not modern enough to have such this function but maybe is have

my problem is not only in starting as I told you many functions didn't work

Best regards
Fahed

[Liteace]

I have, I think a wiring diagram for this model, I'll have a look later to see if I can find it, what engine code does the Jag your working on have ?


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[autobenz]

I have, I think a wiring diagram for this model, I'll have a look later to see if I can find it, what engine code does the Jag your working on have ?


Sent from my iPhone using Tapatalk


Thanks for replay mate
does the jag you working on have ? have what ...?

I'm not sure what is the engine code but the engine is L6 4.0 not super charger

I'm sure my problem is one of this
1- BPM but I replace this module and still have the same problem ( this is programmable module ) maybe this control must be programming with specific parameters ....?

2- center lock module

by the way when I disconnect the BPM connectors the center lock work fine by the two way dashboard button and the remote control

but all the other function didn't work head light, radio, turn signal light, hazard warning and there are a message on the air condition screen ( Er ) also when I switch ignition on there are warning buzzer start for five time
this wasn't happen before this problem

Best regards
Fahed

[cleevesy]

Sounds like you have a wiring issue, heres a link to some diagrams Jaguar electrical reference (http://www.captainjaguarscathouse.com/Electrical_Reference.htm)

Just start all over again in you will find the fault

[autobenz]

Sounds like you have a wiring issue, heres a link to some diagrams Jaguar electrical reference (http://www.captainjaguarscathouse.com/Electrical_Reference.htm)

Just start all over again in you will find the fault

Thank you my friends for help, the problem solve
it was wiring issue. the security module didn't send unlock message to the body processor module (( wiring cutting ))

Best regards
Fahed