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Old 6th March 2010, 13:55   #7
Jules
This is my second home
 
ZT 260 SE Twilight and 10 other 75 ZT's :O

Join Date: Jan 2007
Location: Conwy NORTH WALES
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Quote:
Originally Posted by sawest View Post
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.
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.
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Newbies do now!!
1. Plenum drains..all 3 or 4 year dependent
2. Cooling fan..All speeds functioning
3. Bonnet cable divider block
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