2007 hilux 2.5 diesel Alternator.

DIRKIE

MEMBER
2007 TOYOTA
4 CYL
4WD
MANUAL
50,000 MILES

Hi there

I do not get power to the back of my alternator at the connector with the 4 wires, red/blue, grey, green and white(which I think is negative) I have checked the fuse box and it's good. Can not follow the wiring as it changed colour on the way to the fuse box.
If you can please advice?
regards
Dirk

3 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Check battery terminal on the alternator if it has power also check all the fusible links

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Monday, June 13th, 2011 AT 6:03 AM

DIRKIE

MEMBER
3 POSTS

Hi rasmataz
Battery terminal on alternator has got power, 12, 6V. Can not see any fusible link in harness. Don't think toyota use any.

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Monday, June 13th, 2011 AT 6:09 AM

KHLOW2008

MECHANIC
41,814 POSTS

We do not have the wiring schematics for your vehicle in our database so it is not possible to show you what color wires to check. If the battery main terminal has 12.6 volts with engine running, it is not charging sufficiently.

No negative wires are used. The White should be positive that is hot at all times and the fuse should be underhood fuse box, most likely labelled as ALT-S.

As to the other wires, one should be from the ignition switch, one for the indicator light and the other to the engine ECU.

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Monday, June 13th, 2011 AT 3:57 PM