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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1359 (Exterior Lighting System) >> Diagnostic Tests >> Turn Signal and Hazard Lamps >> Pinpoint Tests >> Pinpoint Test K: The Turn Signal Lamps Are Inoperative >> Pinpoint Test K: The Turn Signal Lamps Are Inoperative

Pinpoint Test K: The Turn Signal Lamps Are Inoperative

WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. K1 CHECK FOR CORRECT HIGH BEAM OPERATION 
    • Place the headlamp switch in the HEADLAMPS ON position.
    • Place the multifunction switch in the HIGH BEAM position while observing the high beam headlamps.
    • Do the high beams operate correctly? 
    1. YES  : PLACE the headlamp switch in the OFF position. Go to  K2.
    2. NO  : REFER to Headlamps .
  2. K2 CHECK THE MULTIFUNCTION SWITCH 
    • Key in OFF position.
    • Disconnect: Multifunction Switch C202
    • For an inoperative LH turn signal, connect a fused (5A) jumper wire between the multifunction switch C202-2, circuit CLS39 (VT/WH), harness side and the multifunction switch C202-8, circuit GD111 (BK/BU), harness side.
      • Fig 1: Connecting Fused (5A) Jumper Wire Between Multifunction Switch C202-2 & C202-8, CLS39 (VT/WH) & GD116 (BK/VT)
      GF0032277Courtesy of FORD MOTOR CO.
    • For an inoperative RH turn signal, connect a fused (5A) jumper wire between the multifunction switch C202-3, circuit CLS41 (GY/YE), harness side and the multifunction switch C202-8, circuit GD111 (BK/BU), harness side.
      • Fig 2: Connecting Fused (5A) Jumper Wire Between Multifunction Switch C202-3, CLS41 (GY/YE) & GD116 (BK/VT)
      GF0032278Courtesy of FORD MOTOR CO.
    • Key in ON position.
    • Do the turn signals in question flash on and off? 
    1. YES  : REMOVE the jumper wire. INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES article. TEST the system for normal operation.
    2. NO  : REMOVE the jumper wire. Go to  K3.
  3. K3 CHECK CIRCUIT CLS39 (VT/WH) (LH TURN SIGNAL) OR CLS41 (GY/YE) (RH TURN SIGNAL) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280b
    • For the LH turn signal, measure the resistance between the multifunction switch C202-2, circuit CLS39 (VT/WH), harness side and the SJB C2280b-42, circuit CLS39 (VT/WH), harness side.
      • Fig 3: Measuring Resistance Between Multifunction Switch C202-2, Circuit CLS39 (VT/WH) & SJB C2280B-42
      GF0032279Courtesy of FORD MOTOR CO.
    • For the RH turn signal, measure the resistance between the multifunction switch C202-3, circuit CLS41 (GY/YE), harness side and the SJB C2280b-29, circuit CLS41 (GY/YE), harness side.
      • Fig 4: Measuring Resistance Between Multifunction Switch C202-3, Circuit CLS41 (GY/YE) & SJB C2280B-29
      GF0032280Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  K4.
    2. NO  : REPAIR the circuit in question. TEST the system for normal operation.
  4. K4 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the SJB 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 SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES 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.
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