Pinpoint Test C: Def Quality - P2BA9 And P20EE
- C1: DIESEL EXHAUST FLUID QUALITY CHECKS
- Drain a small amount of DEF Fluid from the tank (50ml) and, using a digital refractometer to check the concentration of the DEF Fluid. To be within specification, the concentration of the DEF fluid should be between 31.8% - 32.2% (although, a reading of above 30% could be considered acceptable). Three DEF fluid samples from the tank should be tested concurrently to confirm an accurate and stable reading. If, in any of the 3 tests, the result is not within specification, or if there are any signs of debris, then drain and replace the fluid
Does the fluid meet the specification?
Yes: Proceed to next step
No: If DEF added to the vehicle by the customer is found to be of poor quality, or a different fluid other than specified (Screen-Wash or Coolant) is found, this will not be paid for under warranty. Make sure the customer is aware of any possible costs prior to completing any repair work. Replace the DEF and proceed to next step
- Drain a small amount of DEF Fluid from the tank (50ml) and, using a digital refractometer to check the concentration of the DEF Fluid. To be within specification, the concentration of the DEF fluid should be between 31.8% - 32.2% (although, a reading of above 30% could be considered acceptable). Three DEF fluid samples from the tank should be tested concurrently to confirm an accurate and stable reading. If, in any of the 3 tests, the result is not within specification, or if there are any signs of debris, then drain and replace the fluid
- C2: INSPECTION OF THE INTAKE SYSTEM
- Check all intake pipes, exhaust pipes and joints for leaks, using the high pressure diagnostic leak detector test (95-0106)
Was any leaks detected within the intake and exhaust systems?
Yes: Repair leaking intake and exhaust systems joints as required and proceed to next step
No: Proceed to next step
- Check all intake pipes, exhaust pipes and joints for leaks, using the high pressure diagnostic leak detector test (95-0106)
- C3: TESTING THE OPERATION OF DIESEL EXHAUST FLUID INJECTOR
- Remove the Diesel Exhaust Fluid (DEF) injector from the exhaust
- Check the DEF injector for blockage/failure. Using the Jaguar Land Rover approved Selective Catalyst Reduction (SCR) diagnostic tool and application, perform an SCR dosing module test. All on-screen prompts must be followed
Did the test pass?
Yes: Proceed to next step
No: Replace the dosing module and run special application - Diesel exhaust fluid prime and pressure test to prime the system following the replacement. Proceed to next step
- C4: INSPECTION OF THE DPF AND (SCR) CATALYTIC CONVERTER ASSEMBLY NOTE: Vehicles with integral Diesel Particulate Filter (DPF) and Selective Catalyst Reduction (SCR) catalytic converter assemblies should be inspected for blockage and evidence of soot. Soot on the rear face of the filter could indicate a failing DPF
- Check for deposits on the front or rear face of the SCR catalyst including mixer using a borescope. The rear face of the SCR needs to be clear from blockage and a white/gray in color
Was any deposits present on the SCR catalyst faces?
Yes: Replace the SCR catalyst converter assembly
No: Proceed to next step
- Check for deposits on the front or rear face of the SCR catalyst including mixer using a borescope. The rear face of the SCR needs to be clear from blockage and a white/gray in color
- C5: CHECK PCM FOR NOX SENSOR PERFORMANCE RELATED DTC'S
- Using the Jaguar Land Rover approved diagnostic equipment, check if any of the following NOx sensor related DTCs are present on the Powertrain Control Module (PCM) prior to P2BA9 or P20EE being present
- P229F-28, P22A0-16, P229E-13, P22FE-64
Was any of the NOx sensor related DTC's listed above present on the PCM prior to P2BA9 or P20EE being present?
Yes:
- Check the NOx sensor circuit for short circuit to power, short to ground, open circuit, high resistance. Repair circuit as necessary
- Inspect connectors for signs of water ingress and pins for damage and/or corrosion
- If no issues are identified with the wiring system then consider the NOx sensor to be contaminated or poisoned. This contamination will be internal to the sensor, it is not possible to clean it off so the sensor must be replaced. Install a new sensor as necessary and proceed to next step
No: Proceed to next step
- Using the Jaguar Land Rover approved diagnostic equipment, check if any of the following NOx sensor related DTCs are present on the Powertrain Control Module (PCM) prior to P2BA9 or P20EE being present
- C6: RESET SELECTIVE CATALYST REDUCTION QUALITY MONITOR
- Using the Jaguar Land Rover approved diagnostic equipment, run application - Reset Selective Catalyst Reduction quality monitor
Did the application run correctly and have all warning lights on the Instrument Cluster (IC) extinguished
Yes
Proceed to next step
No: If the application did not run correctly, or the warning lights on the Instrument Cluster (IC) are still illuminated, run the application again. When the application has run correctly and the warning lights are extinguished, proceed to next step
- Using the Jaguar Land Rover approved diagnostic equipment, run application - Reset Selective Catalyst Reduction quality monitor
- C7: POWERTRAIN CONTROL MODULE UPDATE NOTE: Make sure the DTCs are cleared following completion of the PCM software download
- Make sure the Powertrain Control Module (PCM) is updated to the latest level software
Is the Powertrain Control Module (PCM) updated to the latest level software
Yes: Test completed. No further actions required
No: Using the Jaguar Land Rover approved diagnostic equipment, update the Powertrain Control Module (PCM) to the latest level software
- Make sure the Powertrain Control Module (PCM) is updated to the latest level software