Pinpoint Test C: DTC P2612 - A/C Refrigerant Distribution Valve (Battery Zone) Control Circuit Low/DTC P2613 - A/C Refrigerant Distribution Valve Control (Battery Zone) Circuit High

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

C1 CHECK CIRCUIT 3206 (LG/YE) FOR VOLTAGE
- Depower the HVTB. Refer to HIGH-VOLTAGE TRACTION BATTERY SYSTEMS DEPOWERING .
- Disconnect: Battery Zone Valve C4230.
- Key in ON position.
- Measure the voltage between battery zone valve C4230-1, circuit 3206 (LG/YE), harness side and ground.
  
  Fig 1: Checking Circuit 3206 (LG/YE) For Voltage
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes: GO to C2.

No: INSPECT smart junction box (SJB) fuse 27 (5A) for an open. If OK, REPAIR the circuit. REPOWER the HVTB. REFER to HIGH VOLTAGE TRACTION BATTERY . CLEAR the DTCs. REPEAT the self-test.
C2 CHECK CIRCUIT 214 (PK/LB) FOR AN OPEN OR A SHORT TO GROUND
- Key in OFF position.
- Disconnect: TBCM C4227a.
- Measure the resistance between TBCM C4227a-33, circuit 214 (PK/LB), harness side and battery zone valve C4230-2, circuit 214 (PK/LB), harness side; and between TBCM C4227a-33, circuit 214 (PK/LB), harness side and ground.
  
  Fig 2: Checking Circuit 214 (PK/LB) For Open Or Short To Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms between the connectors, and greater than 10,000 ohms between the TBCM and ground?
Yes: GO to C3.

No: REPAIR the circuit. REPOWER the HVTB. REFER to HIGH VOLTAGE TRACTION BATTERY . CLEAR the DTCs. REPEAT the self-test.
C3 CHECK CIRCUIT 214 (PK/LB) FOR A SHORT TO VOLTAGE
- Key in ON position.
- Measure the voltage between TBCM C4227a-33, circuit 214 (PK/LB), harness side and ground.
  
  Fig 3: Checking Circuit 214 (PK/LB) For Short To Voltage
  Courtesy of FORD MOTOR CO.
- Is any voltage present?
Yes: REPAIR the circuit. REPOWER the HVTB. REFER to HIGH VOLTAGE TRACTION BATTERY . CLEAR the DTCs. REPEAT the self-test.

No: GO to C4.
C4 CHECK THE BATTERY ZONE VALVE
- Key in OFF position.
- Connect: Battery Zone Valve C4230.
- Install a fused (5A) jumper wire between TBCM C4227a-33, circuit 214 (PK/LB), harness side and ground.
  
  Fig 4: Checking Battery Zone Valve
  Courtesy of FORD MOTOR CO.
- Momentarily cycle the ignition switch to the RUN position while holding onto the battery zone valve.
- Does the battery zone valve engage?
Yes: GO to C5.

No: INSTALL a new battery zone valve. REFER to REMOVAL AND INSTALLATION . REPOWER the HVTB. REFER to HIGH VOLTAGE TRACTION BATTERY . CLEAR the DTCs. REPEAT the self-test.
C5 CHECK FOR CORRECT TBCM OPERATION
- Disconnect all the TBCM connectors.
- Check for:
  - corrosion.
  - pushed-out pins.
- Connect all the TBCM 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 TBCM. REFER to HIGH VOLTAGE TRACTION BATTERY . 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.