I've had a recurring niggle with my cruise control. The problem is that it won't engage, but then several minutes later it works as if nothing was ever wrong.
Here's what I've done so far:
I'm not sure whether the spanner icon and my cruise control problems are related or not, but it does seem to be a bit of a co-incidence. Does anyone have any bright ideas on what might be going on? I'm not very optimistic that this dealer is going to be able to diagnose/fix this problem tomorrow...
- Took it to dealer, a fault code had been logged. They replaced the CIM module and stalk.
- Same fault again, this time dealer reported no fault diagnosable. Dealer produced a service document pointing out that the brake must be activated at least once after the ignition is activated before cruise control can be activated. (Safety feature I guess). This is not documented in the manual, but it also doesn't explain my problem, since I'm certain I'd used the brakes before trying to use the cruise control.
- Engine/immobiliser warning light randomly coming on for several seconds at a time. No apparent effect on driveability or ability to start the car. Now the spanner comes up for a few seconds each time the car is started. Took the car to Holden who scratched their heads, saying they couldn't tell why the light was coming on, but they "reset everything". They claim that no fault codes were stored, but I find this a bit implausible. Surely the engine ECU wouldn't be displaying warning lights with no fault codes to back them up?
- The spanner icon's coming on again now. It's booked in at Holden again tomorrow.