20 Most Recent 2003 Toyota Highlander Questions & Answers

That OEM flat cable is very brittle (even inside). Perhaps replace the entire cable with separate pieces of stranded wire or a good stranded wire ribbon cable. Check solder points on the printed circuit board to ensure they aren't ripped off of the board would be my suggestion.

2003 Toyota... | Answered on Aug 22, 2019

Disconnect the battery ground for a couple of days.It will reset once you hook it back up.Otherwise,unplug the alarm from the system.

2003 Toyota... | Answered on Jun 09, 2019

you can hook this wire to any ground. it is supposed to prevent you from viewing video while driving.

2003 Toyota... | Answered on Mar 07, 2019

The head gaskets blow out due to the head bolts pulling out of the block resulting in stripped threads on most of the holes in the block, there is no recall even though this is a known problem, Toyota did fix some of them under the normal power train warranty of 5 years/60,000 miles. There are several videos and instructions on how some people fixed this problem without replacing the engine block. In any case it's a very expensive repair,.

2003 Toyota... | Answered on Feb 25, 2018

Undo the clips on the air filter housing and pull the top part off then spray the fuid inside the top part of the housing/

2003 Toyota... | Answered on Nov 23, 2017

Try the bulb itself. You can check it with a voltmeter set to continuity. Check the harness for a poor ground connection near the bulb socket. It will be a black wire under a screw head on the chassis. If nothing out of the ordinary is found, replace the headlight relay for that side. Each headlight has its own relay.

2003 Toyota... | Answered on Jun 27, 2017

any body bothered to read the fault codes first
just stopping dead can be timing belt failure, crank/cam shaft sensor failure or wire connections failure

2003 Toyota... | Answered on Apr 12, 2017

Replace the right rear brake lamp. The bulb possible use two filaments one for brake and tail light. One burnt out filament in one bulb.

2003 Toyota... | Answered on Nov 29, 2016

Why would you want the dash lights on with the DRL's ? I wouldn't expect them to be on. You would only have dash lights when conditions require you to have your full lights on. I think you are looking for a fault that's not there. If this doesn't answer your question call the local dealer.

2003 Toyota... | Answered on Oct 08, 2016

after replaceingts a oxygen sensor check engine light will stay on for so many miles dissconnect positive side of battery for 40 secounds then hook back up that will reset it but if you have a alarm on radio you may have to put code in it auto parts stores sale something called a ob 2 its the scan tool to pull codes but even if you use it to reset code if code is detected by computer it will come back after so many miles the light will go off give it some time its normal

2003 Toyota... | Answered on Sep 09, 2016

parts list show both chain and timing belt used on highlander motors

need to know which motor

Highlander FWD 3.0 V 6 1MZFE Highlander AWD 3.0 V 6 1MZFE Highlander FWD 2.4 L 4 2AZFE Highlander AWD 2.4 L 4 2AZFE

Toyota Highlander Water Pump Parts Discount Online Store
one 2003 highlander has an external serp belt driven water pump

for all round reliability you replace water pump, seals , tensioner
and timing belt


2003 Toyota... | Answered on Aug 18, 2016


2003 Toyota... | Answered on May 23, 2016

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