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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1156 (Climate Control System - General Information And Diagnostics - (Hybrid)) >> Diagnostic Tests >> Climate Control System >> Pinpoint Tests >> Pinpoint Test E: DTC P2612 and P2613 - A/C Refrigerant Distribution Valve (Battery Zone) Control Circuit High & A/C Refrigerant Distribution Valve (Battery Zone) Control Circuit Low >> Pinpoint Test E: DTC P2612 - A/C Refrigerant Distribution Valve (Battery Zone) Control Circuit Low, DTC P2613 - A/C Refrigerant Distribution Valve (Battery Zone) Control Circuit High

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

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. E1 CHECK CIRCUIT CBB23 (BN/YE) FOR VOLTAGE 
    • Disconnect: Battery Zone Valve C4230
    • Key in ON position.
    • Measure the voltage between battery zone valve C4230-1, circuit CBB23 (BN/YE), harness side and ground.
      • Fig 1: Checking Circuit For Voltage
      GF0025693Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  E2.
    2. NO  : VERIFY smart junction box (SJB) fuse 23 (5A). If OK, REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
  2. E2 CHECK CIRCUIT CYB14 (GY/OG) FOR AN OPEN OR A SHORT TO GROUND 
    • Key in OFF position.
    • Disconnect: TBCM C4227a
    • Measure the resistance between TBCM C4227a-33, circuit CYB14 (GY/OG), harness side and battery zone valve C4230-2, circuit CYB14 (GY/OG), harness side; and between TBCM C4227a-33, circuit CYB14 (GY/OG), harness side and ground.
      • Fig 2: Checking Circuit For Open Or Short To Ground
      GF0025694Courtesy 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? 
    1. YES  : Go to  E3.
    2. NO  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
  3. E3 CHECK CIRCUIT CYB14 (GY/OG) FOR A SHORT TO VOLTAGE 
    • Key in ON position.
    • Measure the voltage between TBCM C4227a-33, circuit CYB14 (GY/OG), harness side and ground.
      • Fig 3: Checking Circuit For Voltage
      GF0025695Courtesy of FORD MOTOR CO.
    • Is voltage present? 
    1. YES  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
    2. NO  : Go to  E4.
  4. E4 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 CYB14 (GY/OG), harness side and ground.
      • Fig 4: Connecting Fused Jumper Wire
      GF0025696Courtesy 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? 
    1. YES  : Go to  E5.
    2. NO  : INSTALL a new battery zone valve. REFER to AUXILIARY CLIMATE CONTROL - HYBRID article. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
  5. E5 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? 
    1. YES  : INSTALL a new TBCM. REFER to HIGH VOLTAGE TRACTION BATTERY article. TEST the system for normal operation.
    2. 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. TEST the system for normal operation.
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