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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 168 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Pinpoint Tests >> Pinpoint Test E: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry (RKE) Keypad >> Testing

Pinpoint Test E: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry (RKE) Keypad: Testing

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
  1. E1 CHECK THE LOCK/UNLOCK OPERATION FROM THE LH FRONT DOOR LOCK CONTROL SWITCH 
    • Lock and unlock all the doors using the LH front door lock control switch.
    • Do all the doors lock and unlock correctly? 
    • Yes  : GO to E2.
    • No  : GO to SYMPTOM CHART  to diagnose the inoperative door locks.
  2. E2 CHECK THE FACTORY KEYLESS ENTRY KEYCODE 
    • Enter the following diagnostic mode on the diagnostic tool: Smart Junction Box (SJB) PID Keycode.
    • Record the keycode.
    • Does the recorded keycode match the keycode on the factory label? 
    • Yes  : GO to E3.
    • No  : CHECK the operation of the factory keycode. If OK, NOTIFY the customer of the code. If still inoperative, GO to  E4.
  3. E3 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCs) 
    • Use the recorded results from the SJB self-test.
    • Is DTC B1623 recorded? 
    • Yes  : GO to  E5.
    • No  : GO to E4.
  4. E4 CHECK THE RKE KEYPAD OPERATION 
    • Monitor SJB PID KEY_PAD, pressing each RKE keypad button while viewing the PIDs.
    • Do the SJB PID values agree with the RKE keypad switch positions? 
    • Yes  : GO to  E9.
    • No  : GO to E5.
  5. E5 CHECK THE RKE KEYPAD INPUT TO SJB FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Disconnect: SJB C2280c.
    • Measure the resistance between the SJB C2280c connector pin, harness side and ground using the following chart:
      SJB C2280C PIN CIRCUIT

      SJB C2280C Circuit
      pin 1 121(YE/BK)
      pin 17 78 (LB/YE)
      pin 19 123 (RD)
      Fig 1: Checking RKE Keypad Input To SJB For Short To Ground
      G03989243Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    • Yes  : GO to  E7.
    • No  : GO to E6.
  6. E6 CHECK FOR STUCK OR STICKING RKE KEYPAD 
    • Disconnect: Remote Keyless Entry (RKE) Keypad C500.
    • Measure the resistance between the SJB C2280c connector pin, harness side and ground as follows:
      SJB C2280C PIN CIRCUIT

      SJB C2280C Circuit
      pin 1 121(YE/BK)
      pin 17 78 (LB/YE)
      pin 19 123 (RD)
      Fig 2: Checking For Stuck Or Sticking RKE Keypad
      G03989243Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    • Yes  : INSTALL a new RKE keypad. REFER to REMOTE KEYLESS ENTRY KEYPAD . CLEAR the DTCs. REPEAT the self-test.
    • No  : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
  7. E7 CHECK CIRCUIT 1205 FOR AN OPEN 
    • Measure the resistance between the RKE keypad C500-5, circuit 1205 (BK), harness side and ground; and between the RKE keypad C500-6, circuit 1205 (BK), harness side and ground.
      Fig 3: Checking Circuit 1205 For An Open
      G03989245Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes  : GO to E8.
    • No  : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
  8. E8 CHECK THE RKE KEYPAD CIRCUITS FOR AN OPEN 
    • Measure the resistance between the SJB C2280c connector pin, harness side and the RKE keypad C500 connector pin as follows:
      SJB C2280C AND RKE KEYPAD C500

      SJB C2280C Circuit Remote Keyless Entry (RKE) Keypad C500
      pin 1 121 (YE/BK) pin 3
      pin 17 78 (LB/YE) pin 1
      pin 19 123 (RD) pin 4
      Fig 4: Checking RKE Keypad Circuits For An Open
      G03989246Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes  : INSTALL a new RKE keypad. REFER to REMOTE KEYLESS ENTRY KEYPAD . CLEAR the DTCs. REPEAT the self-test.
    • No  : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
  9. E9 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all the SJB connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . PROGRAM all RKE transmitters. REFER to REMOTE KEYLESS ENTRY TRANSMITTER PROGRAMMING . INFORM the customer that any RKE transmitters not present need to be reprogrammed. TEST the system for normal operation.
    • No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
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