Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2014GRAND CHEROKEE LAREDO, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 32 (6.4L - DTCS P2127 TO U1431)
2014 Jeep Grand Cherokee Laredo, AWD
Section 32 (6.4L - DTCS P2127 To U1431)
2014 Jeep Grand Cherokee Laredo, AWDSECTION Section 32 (6.4L - DTCS P2127 To U1431)
WARNING: This page is about a different variant/trim than selected.
- Diagnosis And Testing
- P2127-Accelerator Pedal Position Sensor 2 Circuit Low
- P2128-Accelerator Pedal Position Sensor 2 Circuit High
- P2135-Throttle Position Sensor 1/2 Correlation
- P2138-Accelerator Pedal Position Sensor 1/2 Correlation
- P2166-Accelerator Pedal Position Sensor 1 Maximum Stop Performance
- P2167-Accelerator Pedal Position Sensor 2 Maximum Stop Performance
- P2172-High Airflow/Vacuum Leak Detected (Instantaneous Accumulation)
- P2173-High Airflow/Vacuum Leak Detected (Slow Accumulation)
- P2174-Low Airflow/Restriction Detected (Instantaneous Accumulation)
- P2181-Cooling System Performance
- P2271-O2 Sensor 1/2 Signal Stuck Rich
- P2273-O2 Sensor 2/2 Signal Biased Rich
- P2299-Brake Pedal Position/Accelerator Pedal Position Incompatible
- P2302-Ignition Coil 1 Secondary Circuit - Insufficient Ionization
- P2305-Ignition Coil 2 Secondary Circuit - Insufficient Ionization
- P2308-Ignition Coil 3 Secondary Circuit - Insufficient Ionization
- P2311-Ignition Coil 4 Secondary Circuit - Insufficient Ionization
- P2314-Ignition Coil 5 Secondary Circuit - Insufficient Ionization
- P2317-Ignition Coil 6 Secondary Circuit - Insufficient Ionization
- P2320-Ignition Coil 7 Secondary Circuit - Insufficient Ionization
- P2323-Ignition Coil 8 Secondary Circuit - Insufficient Ionization
- P2503-Charging System Output Low
- P2504-Charging System Output High
- P2610-Pcm Internal Engine Off Timer Performance
- P3400-Cylinder Deactivation System - Bank 1
- P3401-MDS Solenoid 1 Circuit
- P3402-Cylinder 1 Deactivation Control Performance
- P3425-MDS Solenoid 4 Circuit
- P3426-Cylinder 4 Deactivation Control Performance
- P3441-MDS Solenoid 6 Circuit
- P3442-Cylinder 6 Deactivation Control Performance
- P3449-MDS Solenoid 7 Circuit
- P3450-Cylinder 7 Deactivation Control Performance
- P3497-Cylinder Deactivation System - Bank 2
- U0001-00-Can C Bus
- U0101-Lost Communication With TCM
- U0121-Lost Communication With Anti-Lock Brake Module
- U0140-Lost Communication With Body Control Module
- U0151-Lost Communication With Occupant Restraint Controller
- U0155-Lost Communication With Cluster/CCN
- U0212-Lost Communication With SCM
- U0300-Internal Control Module Software Incompatibility
- U0402-Implausible Data Received From TCM
- U0405-Implausible Data Received From Cruise Control Module
- U0416-Implausible Data Received From Esp
- U0428-Implausible Data Received From Steering Angle Sensor
- U110C-Lost Fuel Level Message
- U110E-Lost Ambient Temperature Message
- U110F-Lost Fuel Volume Message
- U1110-Lost Vehicle Speed Message
- U1120-Lost Wheel Distance Message
- U113E-Lost Communication With Intelligent Battery Sensor
- U1141-Lost Esp Torque Request Message
- U1186-Lost Communication With Adaptive Cruise Control Module
- U11B9-Lost Communication With RF Hub
- U11BC-Lost Brake Switch Message
- U11C2-Lost Transmission Message
- U1403-Implausible Fuel Level Signal Received
- U1411-Implausible Fuel Volume Signal Received
- U1412-Implausible Vehicle Speed Signal Received
- U1417-Implausible Left Wheel Distance Signal Received
- U1418-Implausible Right Wheel Distance Signal Received
- U1431-Implausible Data Received From Cruise Control Module
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.