What does code P0638 mean?
Throttle Actuator Control Range/Performance
P0638 is a diagnostic trouble code (DTC) for “Throttle Actuator Control Range/Performance (Bank 1)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
Why is my ECU on my Renault Clio not working?
Very common failing ECU for the Renault Clio 1.5 dCi built between 2002 and 2015, commonly causing non starting with no communications via diagnostic. You will also get the immobiliser light on the instrument cluster and the coolant fan may run constantly.
What causes the engine management light to stay on?
Your engine management light may stay on once your car detects an issue with the EGR valve. This could be caused when the EGR is either constantly closed or open. However, it is worth noting that usually the EGR valve starts to degrade before it fails completely and the engine management system may not pick up on it until it actually fails.
Why does the fuel management light stay on when the EGR is open?
This means the amount of hydrocarbon gases emitted from the tailpipe increases significantly producing a fuel smell. Your engine management light may stay on once your car detects an issue with the EGR valve. This could be caused when the EGR is either constantly closed or open.
Why does my Renault Clio cut out at idle?
My problem is the engine which cuts out whilst accelarating from idle. The fault is intermittent and does not normally occur from cold and will need 4 or 5 miles before stalling is likely to happen. It does not happen when travelling above about 15mph. It can go for days with no problem at all, then it could cut out 3 or 4 times in ten minutes.
What is the OBD II fault code p0638?
OBD II fault code P0638 is a generic code that is defined as “Throttle actuator control, Bank 1 -range/performance problem”, and is set when the PCM (Powertrain Control Module) detects a problem with the operation of the throttle control actuator on drive-by-wire systems.
What causes a throttle actuator to set code p0638?
Common causes of code P0638 could include the following-. Damaged, burnt, shorted, corroded, or disconnected wiring and/or connectors. Note that wiring issues in almost any part of the CAN bus system that is involved in throttle control can cause this code to set. Defective throttle actuator.
Is there a fault on my Renault Clio?
I have a Renault Clio 2005 Extreme 75 1.2 16V. For the past 9 months, I have had an intermittent fault coming up on the car. It has had a throttle body replaced 2 months ago and this hasn’t cured the fault. Renault had my car for the past week where it didn’t show a fault (typical!)
What is the fault code on a Renault?
Renault had my car for the past week where it didn’t show a fault (typical!) They checked the wiring which was fine but they think there maybe a fault within the ECU however they are not 100% sure. Today I had this fault and when we ran a diagnostic on it, it shows the fault code P0638.