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Orginal problem.. no temp indication on dash.. Supect ECT? fuses good ECT location.??.... and A/c quit at the same time....also.. voltmeter reads 9-10 volts but battery load tests and system load tests check good at the battery..14.2 volts load system down to 10.5 and recovers quickly.. bad volt gauge?.
Country: United StatesMake: VolvoModel: s-80Year: 1999 Already Tried: Orginal problem.. No temp indication on dash Supect ECT? Fuses good /Fans cycle ECT location.??.... A/c quit at the same time / voltmeter reads 9-10 volts (on dash)but battery load tests and system load tests check good at the battery..14.2 volts load system down 5amp draw to 10.5 and recovers quickly.. bad volt gauge?.any help appreciated
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Experience: Volvo Master Technician with 15 years excusively with Volvos. Also ASE L1certified for over 10 years.
Our chat has ended, but you can still continue to ask me questions here until you are satisfied with your answer. 41107.1642153588
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sent you a detailed responce.. and yes i can read the postings. thank you i work 230am nevada time to 2am nevada time. no chat available..
I did not get the detailed response. I know it's frustrating...it has happened to me a few times. If you can resend it I would appreciate it. Thanks!
ok I changed the ECT with a direct volvo ECT.. still no temp indication or a/c engagement and stumbling on start..took it to a repair shop today that had the volvo software.. he cleared the codes all of them and restarted the car.. same thing same set of codes....hes pulling his hair out @ 85 per hour.... can you give me a direction to head for further troubleshooting. cuz i got a feeling this is going to kick his a** and im going to end back up looking at this car.. any help is appreciated... is there a block diagram(schematic) that shows the flow of volts/ signals etc..down to the ecm? thanks ..the codes that were set were engine service soon stc(trans?) service soon.. and yes you are correct..its the fuel guage in the lower right corner(in all fairnessive never seen a gas gauge broken down into increments( hahah) anyway. any help would be appreciated...
Ok the 2 wires to the sensor go directly to the ECM. The ECM is in the box by the windshield washer reservoir spout in the front corner passenger side. The gray/red wire is the signal and goes to terminal A4 on the ECM. The brown/black wire is the signal ground, and goes to terminal A60 on the ECM. Check these 2 wires for continuity, shorts to 12 volts, shorts to ground (on the signal wire). The ECM is the module closest to the fender. I'm not sure how you can get it out without the special cam locking lever tool to slide back the pink plastic cam lock mounting strips, one on each side of the ECM. The terminal numbers are marked in very small numbers on the socket. It's 1AM here, I must retire. Let me know about the wires.41108.2075418634
thank you get some well deseved rest thank you
Ok