02 isuzu trooper 4WD switch - Automotive Wiring and Electrical


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02 isuzu trooper 4WD switch

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Auto Repair Home>> Automotive Repair>> Automotive Wiring and Electrical

toolman0007
User

Feb 8, 2014, 7:35 AM

Post #1 of 7 (1780 views)

02 isuzu trooper 4WD switch	Sign In

I have a none working four wheel drive unit on this 02 isuzu trooper looking for info on which wires are input and out put on the 4 wheel drive switch that's on the right side of transmission.

kev2
Veteran
kev2 profile image

Feb 8, 2014, 10:09 AM

Post #2 of 7 (1766 views)

Re: 02 isuzu trooper 4WD switch	Sign In

4wd switch total 4 wires -am I on right diagram -- blu/wht is 12v fused the red/wht is to the 4wd module -
grn/red and red/grn is the bulb

toolman0007
User

Feb 8, 2014, 1:38 PM

Post #3 of 7 (1749 views)

Re: 02 isuzu trooper 4WD switch	Sign In

well now that i have your info it's back to checking. it's my understanding the 4wd/sw or speed sensors are the most common parts that fail on this thing. thank you for the info. will be testing and getting back

kev2
Veteran
kev2 profile image

Feb 9, 2014, 9:04 AM

Post #4 of 7 (1740 views)

Re: 02 isuzu trooper 4WD switch	Sign In

I think it has a vacuum actuator - thats where I would look,

Any way an 02 should generate some codes to make it easy

toolman0007
User

Feb 9, 2014, 12:57 PM

Post #5 of 7 (1730 views)

Re: 02 isuzu trooper 4WD switch	Sign In

yes well from what i have read yes, the tod system should show codes. but there is nothing. yes I have already checked every thing at the differential have vacuum but no electric, that's why the 4w ds is being checked. although it sits on the very top of the trans and is not easy to get to, my idea of back probing in out the window. will just have to check it mid point on the harness.

toolman0007
User

Feb 9, 2014, 12:59 PM

Post #6 of 7 (1728 views)

Re: 02 isuzu trooper 4WD switch	Sign In

just a note I have a full layout of the system and the location of all items

toolman0007
User

Feb 10, 2014, 10:47 AM

Post #7 of 7 (1713 views)

Re: 02 isuzu trooper 4WD switch	Sign In

ok now that i have had time to check. blue and white- 12 volt is that a small blue with white dots and is the red and white a larger red wire with white stripe. just to confirm only blue and white wire going to switch and when checked barely lit up the test light. tested with key on in drive with four wheel switch on dash active

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