PINPOINT TEST F: DTCs B1B52:12 AND B1B52:14

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

F1 CHECK THE SPEAKER CONNECTOR FOR CORRECT LATCHING
- Ignition OFF.
- Inspect the PAM speaker connector for correct latching by pulling on the latched connector .
- Is the connector latched?
- Yes: GO to F2.
- No: Correctly LATCH the connector. CLEAR the DTCs. TEST the system for normal operation.
F2 MEASURE THE PARKING AID SPEAKER RESISTANCE
- Disconnect: Parking Aid Speaker C3268.
- Measure the resistance between the parking aid speaker pin 2, component side and the parking aid speaker pin 1, component side.
  
  Fig 1: Identifying Measuring Resistance Between Parking Aid Speaker Pin 1 And Parking Aid Speaker Pin 2 Connector End View
  Courtesy of FORD MOTOR CO.
- Is the resistance between 40 and 60 ohms?
- Yes: For DTC B1B52: 14, GO to F3.
  For DTC B1B52: 12, GO to F7.
- No: INSTALL a new parking aid speaker. REFER to PARKING AID MODULE (PAM) . CLEAR the DTCs. TEST the system for normal operation.
F3 CHECK THE PARKING AID SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND
- Connect: Parking Aid Speaker C3268.
- Disconnect: PAM C4014 .
- Measure the resistance between the PAM C4014-2, circuit CMP09 (BN/BU), harness side and ground .
  
  Fig 2: Identifying Measuring Resistance Between PAM C4014-2 And Ground Connector End View
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes: GO to F5.
- No: GO to F4.
F4 CHECK THE PARKING AID SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND WITH THE PARKING AID SPEAKER DISCONNECTED
- Disconnect: Parking Aid Speaker C3268.
- Measure the resistance between the PAM C4014-2, circuit CMP09 (BN/BU), harness side and ground .
  
  Fig 3: Identifying Measuring Resistance Between PAM C4014-2 And Ground Connector End View
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes: REPAIR circuit RMP09 (BU/GN). CLEAR the DTCs. TEST the system for normal operation.
- No: REPAIR circuit CMP09 (BN/BU). CLEAR the DTCs. TEST the system for normal operation.
F5 CHECK THE PARKING AID SPEAKER (+) CIRCUIT FOR AN OPEN
- Disconnect: Parking Aid Speaker C3268.
- Measure the resistance between the parking aid speaker C3268-2, circuit CMP09 (BN/BU), harness side and the PAM C4014-2, circuit CMP09 (BN/BU), harness side .
  
  Fig 4: Identifying Measuring Resistance Between PAM C4014A-2 And Parking Aid Speaker C4362-2 Connector End View
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes: GO to F6.
- No: REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.
F6 CHECK THE PARKING AID SPEAKER (-) CIRCUIT FOR AN OPEN
- Measure the resistance between the parking aid speaker C3268-1, circuit RMP09 (BU/GN), harness side and the PAM C4014-6, circuit RMP09 (BU/GN), harness side .
  
  Fig 5: Identifying Measuring Resistance Between PAM C4014A-6 And Parking Aid Speaker C4362-1 Connector End View
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes: GO to F8.
- No: REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.
F7 CHECK THE PARKING AID SPEAKER CIRCUITRY FOR SHORTS TO VOLTAGE
- Ignition ON.
- Measure the voltage between the PAM C4014-2, circuit CMP09 (BN/BU) , harness side and ground; and between the PAM C4014-6, circuit RMP09 (BU/GN) , harness side and ground.
  
  Fig 6: Identifying Measuring Voltage Between PAM C4014A-2 And Ground Connector End View
  Courtesy of FORD MOTOR CO.
- Is any voltage present?
- Yes: REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.
- No: GO to F8.
F8 CHECK FOR CORRECT PAM OPERATION
- Connect: All Disconnected Connectors.
- Disconnect the PAM connector .
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the PAM connector and make sure it seats correctly .
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes: INSTALL a new PAM . REFER to PARKING AID MODULE (PAM) . CLEAR the DTCs. 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.