Car Codes diagnostic trouble code
…? P0172-00 - System Too Rich (Bank 1). ? P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. ? P225D-00 - NOX Sensor 1/1 Performance - Signal Stuck Low. ? P1288-00 - NOX Sensor 1/2 Zero Offset Too High. ? P1289-00 - NOX Sensor 1/2 Zero Offset Too High. ? P1296-00 - EGR Slow Response - Increasing Flow. ? P1297-00 - EGR Slow Response - Decreasing Flow. ? P2BA9-00 - NOX Exceedence - Insufficient Reagent Quality. ? P20…
Code interpretation
What P1288-00 means
This code indicates Vehicle fault code with verified manufacturer evidence Its precise meaning depends on the reporting control module, complete failure-type suffix, model year, powertrain and software level.
Driver experience
Symptoms you may notice
A stored diagnostic trouble code or a related system warning.
Test, do not guess
Possible causes
The precise cause depends on the reporting module, vehicle specification, circuit condition and software level.
Evidence-led checks
Recommended diagnostic route
Save the complete scan and confirm the code against model-specific technical information before testing.
- Capture the evidenceSave the complete all-module scan, code suffixes and freeze-frame data.
- Prove the basicsTest battery condition, system voltage, power and grounds.
- Identify the reporterConfirm the module that logged the code and check circuit integrity.
- Compare live dataReview commanded and actual values under the conditions that set the code.
- Test before replacingUse model-specific wiring diagrams, pin tests and technical information.
- Verify the repairClear the code only after recording evidence, then confirm it does not return.
Vehicle fitment
Vehicle applicability
Jeep Grand Cherokee
Before clearing
Can the code be cleared?
Clearing a code without fixing the cause removes useful evidence and may only switch the warning off temporarily. Save the full scan first; a permanent or repeatedly returning code needs testing.
Confirm the suffix, reporting module, model, year, engine and live data before replacing a component.
Verified public evidence
Manufacturer and model coverage
17 public manufacturer records match this search. These records support applicability research but do not replace VIN-specific workshop information.
GRAND CHEROKEE · 2014 · Powertrain
…? P0172-00 - System Too Rich (Bank 1). ? P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. ? P225D-00 - NOX Sensor 1/1 Performance -…
SourceGRAND CHEROKEE · 2015 · Powertrain
…0 - Reductant Heater 3 Control Circuit Performance ? P2299-00 - Brake Pedal Position/Accelerator Pedal Position Incompatible ? P208B-00 - Reductant Pump 1 Control Performance ? P1288-00 - NOX Sensor…
SourceGRAND CHEROKEE · 2014 · Powertrain
…rformance. P204F-00 - Reductant System Performance. P20E9-00 - Reductant Pressure Too High. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Timing Control. P1288-00 - NOX Sensor 1/2 Zero…
SourceGRAND CHEROKEE · 2014 · Powertrain
…ter Restriction - Soot Accumulation Too High. P241D-00 - Scr Inducement - Forced Engine Shutdown. P204F-00 - Reductant System Performance P20E9-00 - Reductant Pressure Too High. P1288-00 - NOX Sensor…
SourceGRAND CHEROKEE · 2014 · Powertrain
…. ? P0172-00 - System Too Rich (Bank 1). ? P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. ? P225D-00 - NOX Sensor 1/1 Performance…
SourceGRAND CHEROKEE · 2014 · Powertrain
…e. ? P204F-00 - Reductant System Performance. ? P20E9-00 - Reductant Pressure Too High. ? P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Timing Control. ? P1288-00 -…
SourceGRAND CHEROKEE · 2015 · Powertrain
…stic Trouble Codes (DTCs) set in the PCM memory. ? P2299-00 - Brake Pedal Position/Accelerator Pedal Position Incompatible. ? P208B-00 - Redundant Pump 1 Control Performance. ? P1288-00 - NOX…
SourceGRAND CHEROKEE · 2014 · Powertrain
…tion - Soot Accumulation Too High. ? P241D-00 - Scr Inducement - Forced Engine Shutdown. ? P204F-00 - Reductant System Performance. ? P20E9-00 - Reductant Pressure Too High. ? P1288-00…
SourceGRAND CHEROKEE · 2015 · Powertrain
…0 - Reductant Heater 3 Control Circuit Performance ? P2299-00 - Brake Pedal Position/Accelerator Pedal Position Incompatible ? P208B-00 - Reductant Pump 1 Control Performance ? P1288-00 - NOX Sensor…
SourceGRAND CHEROKEE · 2014 · Powertrain
…(Bank 1). P0172-00 - System Too Rich (Bank 1). P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. P225D-00 - NOX Sensor 1/1 Performance - Signal…
SourceGRAND CHEROKEE · 2015 · Powertrain
…Filter Restriction - Soot Accumulation Too High. ? P2299-00 - Brake Pedal Position/Accelerator Pedal Position Incompatible. ? P208B-00 - Redundant Pump 1 Control Performance. ? P1288-00 - NOX Sensor 1/2…
SourceGRAND CHEROKEE · 2015 · Powertrain
…0 - Reductant Heater 3 Control Circuit Performance ? P2299-00 - Brake Pedal Position/Accelerator Pedal Position Incompatible ? P208B-00 - Reductant Pump 1 Control Performance ? P1288-00 - NOX Sensor…
SourceGRAND CHEROKEE · 2014 · Powertrain
…ce. ? P204F-00 - Reductant System Performance. ? P20E9-00 - Reductant Pressure Too High. ? P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Timing Control. ? P1288-00 -…
SourceGRAND CHEROKEE · 2015 · Powertrain
…0 - Reductant Heater 3 Control Circuit Performance ? P2299-00 - Brake Pedal Position/Accelerator Pedal Position Incompatible ? P208B-00 - Reductant Pump 1 Control Performance ? P1288-00 - NOX Sensor…
SourceGRAND CHEROKEE · 2014 · Powertrain
…e. ? P204F-00 - Reductant System Performance. ? P20E9-00 - Reductant Pressure Too High. ? P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Timing Control. ? P1288-00 -…
SourceGRAND CHEROKEE · 2014 · Powertrain
…(Bank 1). P0172-00 - System Too Rich (Bank 1). P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. P225D-00 - NOX Sensor 1/1 Performance - Signal…
SourceGRAND CHEROKEE · 2015 · Powertrain
…stic Trouble Codes (DTCs) set in the PCM memory. ? P2299-00 - Brake Pedal Position/Accelerator Pedal Position Incompatible. ? P208B-00 - Redundant Pump 1 Control Performance. ? P1288-00 - NOX…
Source