TCCoA Forums banner

1 - 2 of 2 Posts

·
Registered
Joined
·
386 Posts
Discussion Starter #1
Did the self-test on my 94 and got codes 31 and 42. What do these mean? I've been searchign but found nothing about them.
 

·
Banned
Joined
·
2,009 Posts
For a 97:
Code 31 means: In-car temperature sensor open.
Code 42 means: Ambient air temperature short.

You can check the resistance of the sensors:
50 deg f to 68 deg f: 37k to 58k ohms
68 deg f to 86 deg f: 24k to 37k ohms.

I will also inspect my vacuum hoses for the ACC system.
 
1 - 2 of 2 Posts
Top