Battery light 01 tacoma

Asked by Mar 28, 2018 at 01:15 PM about the 2001 Toyota Tacoma

Question type: General

Replaced alternator last September. So just over a
year old. New battery the other day. The battery
light comes on and off. Usually whenever my rpms
drop below 1500 sometimes 2000.  Checked
connections as well as terminals and all seem fine.  
Any ideas?

2 Answers

2,090

I'd use a digital multimeter on the generator bat terminal, check voltage different rpms. Usually I want the charging system voltage to be over 13 volts with all accessories on, if possible. The way I understand charge indicator lamp circuits, with engine running, voltage on both circuits, no ground, w/o a ground the lamp can't come on, unless problem with instrument cluster or wiring circuits--generator. If the charging system out-put is good at different rpms, I guess it's up to you if want to worry about the lamp. Just my opinion. I didn't see any computer control over your generator, in the wiring diagram.

Just bought multi meter today I'll check it out. Thanks for the tips I'll post my findings.

Your Answer:

Toyota Tacoma Experts

  • #1
    F_O_R
    Reputation
    560
  • #2
    BURT100
    Reputation
    460
  • #3
    dandyoun
    Reputation
    390
View All

Related Models For Sale

Used Toyota Tundra
26 Great Deals out of 1,404 listings starting at $4,595
Used Ford F-150
128 Great Deals out of 12,343 listings starting at $2,795
Used Toyota 4Runner
11 Great Deals out of 567 listings starting at $4,900
Used Nissan Frontier
20 Great Deals out of 559 listings starting at $3,488
Used Chevrolet Silverado 1500
75 Great Deals out of 8,913 listings starting at $3,995
Used GMC Sierra 1500
54 Great Deals out of 7,922 listings starting at $4,995
Used Jeep Wrangler
20 Great Deals out of 1,532 listings starting at $2,500
Used Ford Ranger
5 Great Deals out of 295 listings starting at $2,995
Used Dodge Ram 1500
21 Great Deals out of 476 listings starting at $2,600
Used Toyota Camry
33 Great Deals out of 1,877 listings starting at $2,000

Used Cars for Sale

2019 Toyota Tacoma For Sale
172 listings starting at $33,440
2018 Toyota Tacoma For Sale
5 Great Deals out of 722 listings starting at $30,141
2017 Toyota Tacoma For Sale
7 Great Deals out of 104 listings starting at $33,995
2016 Toyota Tacoma For Sale
6 Great Deals out of 117 listings starting at $25,990
2015 Toyota Tacoma For Sale
4 Great Deals out of 106 listings starting at $17,892

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.