LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1172 (Exterior Lighting System) >> Diagnostic Tests >> Fog Lamps >> Pinpoint Tests >> Pinpoint Test R: An Individual Fog Lamp Is Inoperative >> Pinpoint Test R: An Individual Fog Lamp Is Inoperative

Pinpoint Test R: An Individual Fog Lamp Is Inoperative

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.
CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: Make sure the bulb is good before continuing diagnostics.
NOTE: The battery ground cable must be disconnected for accurate test results when checking ground circuits for continuity to ground.
  1. R1 CHECK THE GROUND CIRCUIT FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Inoperative Fog Lamp
    • For Escape, measure the resistance between the LH fog lamp C1322-A, circuit GD120 (BK/GN), harness side and ground; or between the RH fog lamp C1323-A, circuit GD120 (BK/GN), harness side and ground
      • Fig 1: Measuring Resistance
      GF0042701Courtesy of FORD MOTOR CO.
    • For Mariner, measure the resistance between the LH fog lamp C152-1, circuit GD120 (BK/GN), harness side and ground; or between the RH fog lamp C162-1, circuit GD120 (BK/GN), harness side and ground
      • Fig 2: Measuring Resistance
      GF0042702Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : REPAIR circuit CLF12 (BN/YE) for an open. TEST the system for normal operation.
    2. NO  : REPAIR circuit GD120 (BK/GN) for an open. TEST the system for normal operation.
scientia non olet · About LEMON Manuals