Lights/AC Fan increases with Acceleration

mashriqain (mashriqain) 2018-08-08 20:01:18 +0500 #1

I have 2014 Passo. Battery swapped some months ago and keep ECOIdle on OFF as that uses the main battery.

I have noticed that if A/C Fan is running OR at night, Headlights are turned on and Accelerator is pressed, it increases the fan or the headlights a little.

Is this normal?

pwuser151070995167 (Saqib Hassan) 2018-08-08 20:30:05 +0500 #2

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usmanqadeer.education (Usman Malik) 2018-08-08 20:46:34 +0500 #3

Bad battery in most cases. Or check volts at battery terminals using multimeter and ask someone to accelerate, If voltage fluctuation is high thn its bad alternator.

Hassan1991 (Electrical Engineer ) 2018-08-09 00:08:14 +0500 #4

did you installed same AMP battery as stock?

anon35615524 2018-08-09 00:10:32 +0500 #5

Bro I have Toyota Passo, X Package, 2013 model. I have driven in summers / winters, with / without AC, heater, day / night, headlights ON / OFF, etc. but never experienced any such thing. The issue does not seem normal to me.

First get your battery checked for voltage / current through proper instruments, and if there are no fluctuations and all values are within limits, then check alternator. Get these checked by any good electrician for any faults.