Hellppppppppp

[Newbiecayenne]

2003 cayenne 4.5 v8 non turbo automatic P1299 gateway 
p1316 psm control unit 

p1606 can timeout tcs/edtc

Repaired all wiring splices under carpet  (both sides)

replaced brake light switch 

replaced battery 

cleaned earth’s 

swapped speed sensors from no issue cayenne 

Warnings are

* brake proportioning 

* 4x4 system faulty 

* both digital and analog speedo not working 

still have same problem I’m absolutely stumped 

Edited November 29, 2019 by Newbiecayenne
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[Loren]

Exact model and year of your car would be helpful...

[Newbiecayenne]

2003 cayenne s 4.5 non turbo automatic 

Edited November 29, 2019 by Newbiecayenne
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[Loren]

P1606 CAN Timeout, ASR/MSR

 

Possible fault cause
- No signals in PSM control module

 

Fault code 1316 PSM control module

 

Possible causes of fault
- No signal/communication (no signal from PSM control module on CAN drive)
- Faulty (fault value for wheel speed or distance pulses)

 

It looks like you have no CAN communication to the PSM controller.

Check the wiring at the controller and the connectors.

[millerchris85]

I’d suggest ohming out the wires as wiring issues can be tricky to find otherwise.

[Newbiecayenne]

Ok guys I’ll give both ideas a go

[Newbiecayenne]

Ok I have power to the brake booster but it is still not working I disconnected the abs pump and I have exactly the same faults does that mean my abs pump is fried?