Pinpoint Test P: DTC B113E - Rear Climate Control Switch Circuit Short To Ground

WARNING: This page is about a different car, the 2005 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

P1 CHECK CIRCUIT 1349 (PK/LG) FOR GROUND
- Key in OFF position.
- Disconnect: Rear Redundant Control Module (RRCM).
- Measure the resistance between RRCM pin 4, circuit 1349 (PK/LG) and ground.
  
  Fig 1: Measuring Resistance Between RRCM Pin 4, Circuit 1349 (PK/LG) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to P2.
- No : INSTALL a new RRCM. TEST the system for normal operation.
P2 CHECK CIRCUIT 1349 (PK/LG) FOR A SHORT TO GROUND
- Disconnect: Rear Climate Control Switch.
- Measure the resistance between RRCM pin 4, circuit 1349 (PK/LG) and ground.
  
  Fig 2: Measuring Resistance Between RRCM Pin 4, Circuit 1349 (PK/LG) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : INSTALL a new rear climate control switch. TEST the system for normal operation.
- No : REPAIR circuit 1349 (PK/LG) for a short to ground. TEST the system for normal operation.