Toyota Corolla Head Light Relay

22 Aug 2014 | Author: | Comments Off on Toyota Corolla Head Light Relay

Questions and Answers

Toyota Head Light Relay

Q. Mr. Ciulla: I have a 1990 Corolla with 366,000 Quick History: My alternator’s burned up two months ago and broke the fan so I have done the following:

and installed a used alternator a large scrap company and parts supplier. The alternator was by this company as Passed and is under warranty.

Replaced all three belts on the and re-tensioned them after hours of running time.

All was until two days ago when the warning light and the charge (little battery with + and picture) both came on and on constantly. I immediately suspected an problem but then I noticed I had no low headlight beams and did not hear the click of the daytime running coming on when I shut the car off and it a few times.

All other external lights are correctly, high beams, side marker, tail and

I visually inspected all fuses in the compartment and driver’s side panel, all okay, and removed headlight bulbs to see if I could see one filament in either bulb as is usually the case when I replaced headlight bulbs in the Neither bulb appeared to any broken filaments.

After looking at schematics Haynes for the headlight system I see a Relay mentioned along two 10 A fuses and on another page of the I see mention of a Running Light on the passenger side kick

Two questions:

Are the Headlight Relay and the Light Relay the same If not, where is the Headlight located in this vehicle?

Do you a faulty alternator component and can I the alternator myself with a (analog) that only volts and resistance as I would to learn how to do this.


A. 1. It depends if you have a model or a USA model. In the Canadian it is called the Daytime Running Relay. In the USA model it is called the Relay.

In the 1991 Toyota there are three Daytime Lamp Relays located in the behind the glove box.

2. If the CHARGE and BRAKE warning are on, that points to a bad diode inside the alternator. Read System Check for information on the charging system.

Additional provided courtesy of AllDATA

to Index 2005 Vincent T.

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