LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1615 (Transfer Case - Four Wheel Drive (4WD) Systems) >> Diagnosis And Testing >> Four Wheel Drive (4WD) Systems >> Pinpoint Tests >> Pinpoint Test B: DTCs B1317 and B1318 >> PINPOINT TEST B: DTCs B1317 AND B1318

PINPOINT TEST B: DTCs B1317 AND B1318

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: DTC B1317 or B1318 can be set if the vehicle has been recently jump started, the battery has been recently charged or the battery has been discharged. The battery may become discharged due to excessive load(s) on the charging system from aftermarket accessories or if the battery has been left unattended with the accessories on.
NOTE: Carry out a thorough inspection and verification before proceeding with the pinpoint test. Refer to INSPECTION AND VERIFICATION  in this service information.
  1. B1 RETRIEVE ALL CMDTCs IN ALL MODULES 
    • Enter the following diagnostic mode on the scan tool: Self Test - All CMDTCs.
    • Is DTC B1317 or B1318 present in more than one module AND P0563, P0620, P0625, P0626 or P065B present in the PCM? 
  2. B2 CHECK BATTERY CONDITION 
    • Yes  : If the battery passed the condition test but required a recharge, REFER to CHARGING SYSTEM -- FUSION, MILAN & MKZ article to diagnose the charging system. CLEAR all Continuous Memory Diagnostic Trouble Codes (CMDTCs). TEST the system for normal operation.

      If the battery passed the condition test and did not require a recharge, GO to B3.

    • No  : INSTALL a new battery. CLEAR all CMDTCs. TEST the system for normal operation.
  3. B3 CHECK THE CHARGING SYSTEM VOLTAGE 
    NOTE: Do not allow the engine rpm to increase above 2,000 rpm while performing this step or the generator may self excite and result in default charging system output voltage. If engine rpm has gone above 2,000 rpm, shut the vehicle off and restart the engine before performing this step.
    • Start the engine.
    • Measure the voltage of the battery.
      • For DTC B1317, turn off all accessories and run the engine at 1,500 rpm for a minimum of 2 minutes.
      • For DTC B1318, turn on headlights and HVAC fan on high and run engine at 1,500 rpm for a minimum of 2 minutes.
        Fig 1: Checking Charging System Voltage
        G07786864Courtesy of FORD MOTOR CO.
    • Is the battery voltage between 13-15.2 volts? 
  4. B4 CHECK FOR VOLTAGE BY MONITORING THE MODULE SUPPLY VOLTAGE (VBAT_4X4) PID 
    • Enter the following diagnostic mode on the scan tool: DataLogger - 4X4 Control Module.
    • With the engine running, monitor the battery voltage VBAT_4X4 PID.
    • Is the battery voltage less than 9 or greater than 15.5 volts? 
    • Yes  : If voltage is less than 9 volts, GO to B5. If voltage is greater than 15.5 volts, INSTALL a new 4X4 control module. REFER to 4X4 CONTROL MODULE  in this service information. CLEAR all CMDTCs. REPEAT the self-test.
    • No  : GO to  B7.
  5. B5 CHECK CIRCUIT GD126 (BK/WH) FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: 4X4 Control Module C3253.
    • Measure the resistance between 4X4 control module C3253-15, circuit GD126 (BK/WH), harness side and ground.
    • Repeat this measurement while wiggling the harness.
      Fig 2: Measuring Resistance Between 4X4 Control Module C3253-15, Circuit GD126 (BK/WH), Harness Side And Ground
      G07786865Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to B6.
    • No  : REPAIR the circuit. CLEAR all CMDTCs. REPEAT the self-test.
  6. B6 CHECK POWER TO 4X4 CONTROL MODULE 
    • Ignition ON.
    • Measure the voltage between 4X4 control module C3253-4, circuit CBP35 (YE/GY), harness side and ground; and between 4X4 control module C3253-5, circuit SBP11 (BU/RD), harness side and ground.
      Fig 3: Measuring Voltage Between 4X4 Control Module C3253-4, Circuit CBP35 (YE/GY), Harness Side And Ground
      G07786866Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to B7.
    • No  : VERIFY the Smart Junction Box (SJB) fuse(s) 11 (10A) and 35 (10A) are OK. If fuse(s) are OK, REPAIR the circuit in question. If SJB fuse(s) are not OK, REFER to the SYSTEM WIRING DIAGRAMS article, to identify possible causes of the circuit short. CLEAR all CMDTCs. REPEAT the self-test.
  7. B7 CHECK FOR CORRECT 4X4 CONTROL MODULE OPERATION 
    • Disconnect the 4X4 control module.
    • Check the harness and component side connectors for:
      • corrosion.
      • pushed-out/bent pins.
    • Connect the 4X4 control module 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 4X4 control module. REFER to 4X4 CONTROL MODULE  in this service information. CLEAR the CMDTCs. REPEAT the self-test.
    • No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR all CMDTCs. REPEAT the self-test.
scientia non olet · About LEMON Manuals