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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1823 (Anti-Theft System - Passive Anti-Theft System (Pats) - (Except Hybrid)) >> Diagnosis And Testing >> Anti-Theft >> Pinpoint Tests >> Pinpoint Test B: DTC B1600 >> Pinpoint Test B: DTC B1600

Pinpoint Test B: DTC B1600

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Large metallic objects, electronic devices on the key ring that can be used to purchase gasoline or similar items, or a second key on the same key ring as the PATS  key may cause a vehicle starting concern and record DTCs under certain conditions. If a fault cannot be identified, examine the customer key ring for such objects or devices. If present, inform the customer that they need to keep these objects from touching the PATS  key while starting the engine. These objects and devices cannot damage the PATS  key, but can cause a momentary concern if they are too close to the key during engine start. If a concern occurs, turn the key off and restart the engine with all other objects on the key ring held away from the ignition key. Check to make sure the PATS  key used by the customer is an approved Ford PATS  key (PATS  keys from Ford, Rotunda, Strattec, and Huf are approved Ford PATS  keys.)
  1. B1 RETRIEVE THE DTCs 
    • Ignition OFF.
    • Connect the scan tool.
    • Ignition ON.
    • Clear the DTCs.
    • Ignition OFF.
    • Ignition ON.
    • Retrieve the DTCs.
    • Is DTC B1600 retrieved? 
    • Yes:  GO to B2  .
    • No:  If DTCs other than PATS  DTCs are retrieved, REFER to DIAGNOSTIC TROUBLE CODE (DTC) CHART the Diagnostic Trouble Code (DTC) Chart .

      If no DTCs are retrieved, the system is OK.

  2. B2 CHECK BOTH PATS KEYS 
    NOTE: Make sure the new PATS  keys are approved Ford encoded PATS  keys. Unapproved PATS  keys do not always operate correctly over various temperature ranges (PATS  keys from Ford, Rotunda, Strattec, and Huf are approved Ford PATS  keys).
    • Obtain both PATS  keys from the customer and follow the procedure using one PATS  key, then the other. If the customer only has one PATS  key, it will be necessary to cut a new PATS  key.
    • If it is necessary to cut a new PATS  key, program the new PATS  key. Refer to INTEGRATED KEYHEAD TRANSMITTER (IKT) KEY PROGRAMMING USING DIAGNOSTIC EQUIPMENT .
    • Ignition ON.
    • Clear the DTCs.
    • Ignition OFF.
    • Ignition ON.
    • Retrieve the DTCs.
    • Using all existing keys, then the newly programmed key, is DTC B1600 present? 
  3. B3 INSTALL A NEW PATS TRANSCEIVER 
    NOTE: Replacement of the PATS  transceiver does not require the PATS  keys to be programmed into the IC  again.
    NOTE: Do not use the PATS  key that may have been programmed in Step  B2.
    • Ignition OFF.
    • Install a new PATS  transceiver. Refer to PASSIVE ANTI-THEFT SYSTEM (PATS) TRANSCEIVER .
    • Ignition ON.
    • Clear the DTCs.
    • Ignition OFF.
    • Turn the key to the ON position using an existing customer PATS  key.
    • Retrieve the DTCs.
    • Is DTC B1600 retrieved? 
    • Yes:  GO to B4  .
    • No:  The system is OK.
  4. B4 CHECK FOR CORRECT IC OPERATION 
    • Disconnect the IC  connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the IC  connector and make sure it seats correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
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