Pinpoint Test

CHECK THE SPEAKER CONNECTOR FOR CORRECT LATCHING
1. Ignition OFF.
2. Inspect the parking aid speaker connector for correct latching by pulling on the latched connector.
- Is the connector latched?
- Yes: GO to 2 on page 2.
- No: Correctly LATCH the connector.
MEASURE THE PARKING AID SPEAKER RESISTANCE
1. Disconnect: Parking Aid Speaker.
2. Measure:
Fig 1: Checking Speaker Connector For Correct Latching
Courtesy of FORD MOTOR CO.
- Is the resistance between 40 and 60 ohms?
- Yes: For Diagnostic Trouble Code (DTC) B1B52:14, GO to 3 on page 2.
  For Diagnostic Trouble Code (DTC) B1B52:12, GO to 6 on page 4.
- No: INSTALL a new parking aid speaker. REFER to Parking Aid Speaker .
CHECK THE PARKING AID SPEAKER CIRCUITRY FOR A SHORT TO GROUND
1. Disconnect: Parking Aid Module (PAM).
2. Measure:
Fig 2: Checking Parking Aid Speaker Circuitry For Short To Ground
Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10,000 ohms?
- Yes: GO to 4 on page 3.
- No: REPAIR the circuit in question.
CHECK THE PARKING AID SPEAKER CIRCUITRY FOR AN OPEN
1. Measure:
Fig 3: Checking Parking Aid Speaker Circuitry For Open
Courtesy of FORD MOTOR CO.
- Are the resistances less than 3 ohms?
- Yes: GO to 5 on page 4.
- No: REPAIR the circuit in question.
CHECK THE PARKING AID SPEAKER CIRCUITS FOR A SHORT TO EACH OTHER
1. Measure:
Fig 4: Checking Parking Aid Speaker Circuits For Short To Each Other
Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes: GO to 7 on page 5.
- No: REPAIR the circuits.
CHECK THE PARKING AID SPEAKER CIRCUITRY FOR A SHORT TO VOLTAGE
1. Disconnect: Parking Aid Speaker.
2. Disconnect: Parking Aid Module (PAM).
3. Ignition ON.
4. Measure:
Fig 5: Checking Parking Aid Speaker Circuitry For Short To Voltage
Courtesy of FORD MOTOR CO.
- Is any voltage present?
- Yes: REPAIR the circuit in question.
- No: GO to 7 on page 5.
CHECK FOR CORRECT Parking Aid Module (PAM) OPERATION

Disconnect and inspect the Parking Aid Module (PAM) connector.
Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
Reconnect the Parking Aid Module (PAM) connector. Make sure it seats and latches correctly.
Operate the system and determine if the concern is still present.

Is the concern still present?

Yes: CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new Parking Aid Module (PAM). REFER to PARKING AID MODULE (PAM) .
No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.