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Peugeot Expert 2017 DTC P1434 & P1435 & Communication Issue

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Hi Gents!

Peugeot Expert K0
Year: 2017
VIN: VF3VBBHVGZ072136
I will list the faults I have found so with this vehicle.
P1435 -00 & P1434 96 Multiplexed Additive Pump

Now the pump has a normal supply to it. Positive and earth checks are ok.
The bus line may be a different...

I can only communicate with the ABS and Engine ECU via Peugeot Partner in a 2017 DiagBox version. No other diagnostic machine can read it except a VDO which read the ECU and ABS. It has not been to Peugeot yet.

It has had a new mixing tank and injector by a previous garage.

It has been throwing in a power steering fault on occasions and I am finding while running that there is an earth where there should be power feed the PAS unit. There is 12 V coming out at the BSI. The feed also supplies the additive pump. When the AP is disconnected the PAS still has an earth. I have not gone into the inter yet connectors
CAN ISO has a 60 ohm resistance at the diagnostic connector.

Questions... Has this got a security gateway which is stopping me connecting to the rest of the car? Which units are the CAN resistors?

Many thanks
Tony

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