1999 v70 - Check Engine Light - Car Computer Cannot Be Read

rivera0608 · Post by **rivera0608** » 29 Jul 2019, 12:29

Update: I've checked all fuses again just to make sure. I pulled a few OBDII plugs from 99 v70s at local junkyards, and still nothing. The code reader is getting power, but the data link cannot be established.

I've tried 4 different code readers, three different OBDII plugs/pigtail wires in the center console. Nothing.

Could it be the ECU itself in the engine compartment? Or am I possibly looking at a full wiring harness replacement?

Post by **misha** » 29 Jul 2019, 14:44

You checked everything except what i told you to do.

Again.....K-Line goes through immobiliser module(immo ecu)

Could be immobiliser fault...or k-line from immo ecu to engine ecu.

Post by **abscate** » 23 Mar 2020, 09:00

Bumped thread for you, T.

See the induction failure thread I bumped, too.

We need friends in RI to watch that PnP for us - only one in Northeast.