Hi, newbie here.

I have been restoring my 1998 V70XC for a bit, and am having a problem with the pump not coming on. No CEL or codes from the ODB.

New pump
Relay is good.
Power circuit wiring to the pump is good.
12 volt at terminal 86 when Ignition is turned on.
No ECU grounding signal on 85 on cold start.

Vacuum to the air control valve on cold start. That pneumatic circuit is working OK.

Does anyone have any words of wisdom or a wiring diagram for that relay between the ECU and the relay terminal 85?

Thanks in advance for any help.