Pinpoint Test C: NO POWER IN START/RUN

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.

C1 CHECK THE IGNITION SWITCH
- Carry out the Ignition Switch Component Test. Refer to COMPONENT TESTING for component testing.
- Is the ignition switch OK?
- Yes : GO to C2.
- No : INSTALL a new ignition switch. TEST the system for normal operation.
C2 CHECK CIRCUIT 30-BB20 (RD) FOR VOLTAGE
- Disconnect: Ignition Switch C250.
- Measure the voltage between ignition switch C250-7, circuit 30-BB20 (RD), harness side and ground.
  
  Fig 1: Measuring Voltage Between Ignition Switch C250-7, Circuit 30-BB20 (RD), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : GO to C3.
- No : REPAIR the affected circuit(s). TEST the system for normal operation.
C3 CHECK CIRCUIT 15-DD4 (GN/BK) FOR VOLTAGE
- Measure the voltage between the CJB C270a-3, circuit 15-DD4 (GN/BK), harness side and ground.
  
  Fig 2: Measuring Voltage Between CJB C270A-3, Circuit 15-DD4 (GN/BK), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : GO to C4.
- No : REPAIR the circuit. TEST the system for normal operation.
C4 CHECK CJB FUSE 17 (5A)
- CHECK the CJB fuse 17 (5A).
- Is the fuse OK?
- Yes : CHECK the instrument cluster for faults. REFER to INSTRUMENT CLUSTER .
- No : INSTALL a new fuse. TEST the system for normal operation.