electrical problem

[gazman123]

hi i have a vectra 53 plate 2.2 dti with 150,000 miles i am currently having problems with the abs and anti skid light coming on also the speedo is not giving the proper reading it goes up and down while driving also the seat blt warning busser is going on as soon as the car is started .

can nyone suggest what this could be

thanks gary

[Ste]

The speedo, ABS and TC sound like a wheel speed sensor is not operating correctly. Either the sensor, wiring harness, or the speed ring itself need checking for damage, dirt ! or insecurity.

Selt belt warning buzzer sounds like the switch in the belt clip recepticle is not operating. Either fix the switch or cut the wires that go into the drivers anchorage and join together if necessary (can't remember if they are join or break to silence)

[gazman123]

the wheel bearing was replaced last week and before it was the abs and tc light was on but when fixed it went out

[Ste]

So the light was on before the bearing was replaced and when the bearing was repaired the light went out? So your 'current problems' are not there now?

[gazman123]

yeah the abs light wason before the wheel bearing was changed but now the speedo is faulty

[Gsi3.2]

speedo readings are picked up from the ABS sensor...

Have you had the car on a diagnostic machine??...it could be anything from another dodgy wheel sensor, to a dodgy panel or CIM fault...

[gazman123]

well i fitted a new wheel bearing last week and all was fine then last night the speedo went funny and abs and t/c light came on i was wondering if i took conection to abs sensor off and cleaned if that may help

[Gsi3.2]

the sensor is part of the internals of the wheel bearing, so it's not really serviceable....but you could check the connectors.....

if not, it's a really good session on the diagnostic machine..