Chrysler P1628: Sensor Reference Voltage 2 Circuit Erratic
Is your scanner showing Chrysler P1628?
No worries. We'll show you what it means and how to deal with it.
Chrysler P1628: Sensor Reference Voltage 2 Circuit Erratic
OVERVIEWWhat Does The Chrysler P1628 Code Mean?
The Powertrain Control Module (PCM) contains two internal 5-Volt Sensor Supply sources; Reference Voltage 1 and Reference Voltage 2. Each of these 5-Volt Supply sources are split internally into parallel circuits to provide a 5.0 volt reference to multiple three wire sensors. For self protection, if the 5-Volt Supply circuit is shorted to ground or if one of the sensors is internally shorted, the PCM will turn off the 5-Volt Supply circuit until the next ignition cycle.
What Are The Potential Causes Of The Chrysler P1628 Code?
- 5-VOLT SUPPLY CIRCUIT INTERMITTENTLY SHORTED TO GROUND
- 5-VOLT SUPPLY CIRCUIT INTERMITTENTLY SHORTED TO VOLTAGE
- 5-VOLT SUPPLY CIRCUIT INTERMITTENTLY OPEN
- MAP SENSOR
- CAMSHAFT POSITION SENSOR
- CAMSHAFT POSITION SENSOR 2
- ACCELERATOR PEDAL POSITION (APP) SENSOR
- POWERTRAIN CONTROL MODULE (PCM)
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Cardone 79-4407 Remanufactured Chrysler Computer (Renewed)
>>> Chrysler MAP sensor
>>> CAM Camshaft Position Sensor 917-706 04609089AC
>>> Dorman 699-120 Accelerator Pedal Compatible with Select Chrysler
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Chrysler P1628, DTCDECODE.
