Quote:
Originally Posted by sawest
Sorry, don't mean to muddy the water, but I did the engine coolant temp test this morning like this:
Hold trip reset, key in to pos' 1, select test mode, start car - drive!
Test worked OK and I got a result.
Guess I'm saying, does it matter if you start the car before the test mode is selected or can it be done either way or have I just broken my car?
Cheers,
Simon.
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Depends what tests you want to run................
Engine needs to be running if you want to monitor
Test No 9 : Alternator Output. 14 - 14.5 Volts
No need for engine to be running:
If you want to test the battery output on it's own for Volts drop with a load on it ie:
With Headlamps and Blower motor on
12 Volts heading towards 11 Volts will be observed.
Test no 6
No need for engine to be running for fuel level & sensor monitoring.
Etc Etc.
Test 7.3
Not only does the engine need to be running but the Vehicle has to be in motion for this reading.
No hard & fast rules here, just think about what test you are trying to do & why.