What Does P2144 Mean?
The PCM has detected abnormally low voltage in the EGR vent control circuit. This indicates a short to ground or excessive current draw in the vent solenoid control system.
Common Causes
40%
Control circuit shorted to ground in wiring harness
30%
Failed EGR vent solenoid with internal short to ground
15%
Damaged connector causing pin-to-pin short to ground
10%
Chafed wiring rubbing against chassis or engine component
5%
PCM internal short or driver failure
Diagnostic Steps
1
Step 1: Disconnect EGR vent solenoid connector and check for pins pushed out or shorted together
2
Step 2: Measure resistance from control circuit to ground with solenoid disconnected; should read infinite resistance
3
Step 3: Inspect wiring harness routing for areas where it may contact ground or sharp edges
4
Step 4: Measure solenoid coil resistance to verify it's within specification and not shorted
5
Step 5: Check PCM connector for water intrusion or corrosion that could cause internal shorts
Estimated Repair Cost
$120 - $500
Parts + labor, varies by vehicle and location
The PCM has detected abnormally low voltage in the EGR vent control circuit. This indicates a short to ground or excessive current draw in the vent solenoid control system.
The most common cause of P2144 (Exhaust Gas Recirculation Vent Control Circuit Low) is: Control circuit shorted to ground in wiring harness
Typical repair costs for P2144 range from $120 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to operate but may experience rough idle and increased emissions. Address promptly to prevent catalyst damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2144 to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control (EGR System)
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
