My car keeps surging wanting to die after it starts up
After I start my car it keeps surging wanting to die and sometimes it does. I ran a diagnostic test and the code came back p0562 low voltage. I had the battery and altinator tested both came back fine. What is causing this?
Cars & Trucks - Saturn - Vue - 2003 Saturn VUE
Answers & Comments
Common Problems That Trigger the P052 Code
- Defective Alternator
- Defective Alternator wiring or connector(s)
- Defective B+ battery cable from Alternator to battery
- Poor Charging System ground(s)
- Defective PCM wiring/connection to Alternator
- Defective PCM
- Defective Voltage Regulator
- Large Parasitic battery drain
- Defective Battery and/or cables
Common Misdiagnoses- Battery
- Starter
Check the condition of your battery cables - are they corroded/have broken wire strands? Also check where the negative battery lead attaches to the engine/bodywork.Check all the wiring for breaks and tightness - a small earth wire can be loosened and retightened to create a better earth. Corroded power wires can struggle to supply the correct voltage - remove and clean whatever you can find.
It's unlikely to be your alternator as you say it has been checked - the voltage regulator is built into the alternator so it must be okay.
A parasitic drain can be difficult to find. Try switching off everything - radio, heater ... the next time you start the car. If you know somebody who has a voltmeter and knows how to check for a power drain .. ask them.
The link below shows a Saturn PCM (it may not be your actual model..). Check all wiring around the PCM
Where To Find The ECM Module 3 0 Litre Saturn Vue