LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1416 (Tires & Wheels) >> Diagnostic Tests >> Tire Pressure Monitoring System >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: The tire pressure sensors are not designed to be used with aftermarket wheels.
    NOTE: The use of run-flat tires (tires with steel body cord plies in the tire sidewall) where not originally equipped, may cause the TPMS to malfunction and is therefore not recommended.
  1. Verify the customer concern by inspecting the vehicle and observing the message center (if equipped) and the TPMS indicator.
    2. NOTE: The valve-mounted TPMS sensors and the strap-mounted TPMS sensors are not compatible. Swapping wheels from one vehicle to another with the different systems will set a TPMS fault.
    NOTE: Swapping wheels between vehicles with the same TPMS will cause a TPMS fault to be set if the sensors are not trained. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training .
    NOTE: Non-OEM modifications made to the vehicle may result in false TPMS warnings.
  2. Inspect to determine if one of the following mechanical or electrical concerns apply:
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Low tire pressure
    • Tire Pressure Monitoring System (TPMS) sensor damaged or missing
    • Spare tire installed as a road wheel
    • Incorrect TPMS sensor installed
    • TPMS sensor installed incorrectly
    • Sensors not trained after a tire rotation on vehicles with different front and rear tire pressures
    • Non-OEM wheels installed (aftermarket rims)
    • Non-OEM equipped run-flat tires installed
    • Other non-OEM modifications (roll cages, service barriers, part racks, ladder racks)
    • Wiring, terminals or connectors
    • Smart Junction Box (SJB) damaged
    • Aftermarket electronic accessories
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
    4. NOTE: Make sure to use the latest scan tool software release.
  4. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
    5. NOTE: The Vehicle Communication Module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM.
  5. If the scan tool does not communicate with the VCM:
    • check the VCM connection to the vehicle.
    • check the scan tool connection to the VCM.
    • refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no power to the scan tool.
  6. If the scan tool does not communicate with the vehicle:
    • verify the ignition key is in the ON position.
    • verify the scan tool operation with a known good vehicle.
    • refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the PCM.
  7. Carry out the network test.
    • If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
    • If the network test passes, retrieve and record continuous memory DTCs.
  8. Clear the continuous DTCs and carry out the self test diagnostics for the SJB (the TPMS is part of the SJB).
  9. If the DTCs retrieved are related to the concern, go to the Tire Pressure Monitoring System (TPMS) DTC Chart. For all other DTCs, refer to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES .
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart .
TIRE PRESSURE MONITORING SYSTEM (TPMS) DTC CHART

DTC Description Source Action
B106A Pressure Sensor Range Bit Incorrect State Smart Junction Box (SJB) Go to Pinpoint Test G .
B106B Tire Pressure Sensor Low Battery SJB DTC B106B can be set during SJB configuration. Go to Pinpoint Test H .
B106D Tire Pressure Monitoring System (TPMS) Initiators Not Configured SJB DTC B106D is only present when a new SJB is installed, the SJB is incorrectly flashed or the SJB is incorrectly configured. Successfully configuring the SJB is the only way to clear this DTC. VERIFY the SJB is correctly configured. If DTC B106D is still present, REFER to MODULE CONFIGURATION .
B2477 Module Configuration Failure/Mismatch SJB DTC B2477 is only present when a new SJB is installed, the SJB is incorrectly flashed or the SJB is incorrectly configured. Successfully configuring the SJB is the only way to clear this DTC. MAKE SURE the SJB is configured correctly. If DTC B2477 is still present, REFER to MODULE CONFIGURATION .
B2868 LF Tire Pressure Sensor Fault SJB DTC B2868 is only present when a new SJB is installed, the SJB is flashed or the SJB is reconfigured. TRAIN the tire pressure sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor Training .
B2869 RF Tire Pressure Sensor Fault SJB DTC B2869 is only present when a new SJB is installed, the SJB is flashed or the SJB is reconfigured. TRAIN the tire pressure sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor Training .
B2870 RR Tire Pressure Sensor Fault SJB DTC B2870 is only present when a new SJB is installed, the SJB is flashed or the SJB is reconfigured. TRAIN the tire pressure sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor Training .
B2871 LR Tire Pressure Sensor Fault SJB DTC B2871 is only present when a new SJB is installed, the SJB is flashed or the SJB is reconfigured. TRAIN the tire pressure sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor Training .
B2872 Tire Pressure Sensor Fault SJB
NOTE: If the vehicle has been stationary for more than 30 minutes, the sensors will go into a "sleep mode" to conserve battery power. It will be necessary to wake them up so they will transmit the latest tire pressure information to the SJB.
ACTIVATE the TPMS sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor Activation . Go to Pinpoint Test F .
B287A Tire Pressure System Fault SJB Go to Pinpoint Test F .
C2780 ECU in Manufacturing Mode SJB DTC C2780 is only present when a new SJB is installed, the SJB is flashed or the SJB is reconfigured. TRAIN the tire pressure sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor Training .
U0155 Lost Communication with Instrument Cluster SJB REFER to MODULE COMMUNICATIONS NETWORK to diagnose the no communication problem.
All other SJB DTCs - SJB REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES .
scientia non olet · About LEMON Manuals