Pinpoint Test R: The Safety Belt Warning Indicator Is Never/Always On

WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

R1 CARRY OUT THE INSTRUMENT CLUSTER WARNING LAMPS AND CHIME ACTIVE COMMAND
- Key in ON position.
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster Active Command.
- Select the instrument cluster warning lamps and chime active command. Trigger the all lamps active command ON and OFF. Observe the safety belt warning indicator.
- Does the safety belt warning indicator illuminate when triggered ON, and turn off when triggered OFF?
1. Yes : GO to R2.
2. No : GO to R8.
R2 DETERMINE THE CONDITION
- Key in ON position.
- Observe the safety belt warning indicator while buckling and unbuckling the driver safety belt.
- Is the safety belt warning indicator always on?
1. Yes : GO to R6.
2. No : GO to R3.
R3 CHECK CIRCUIT 469 (LG) FOR VOLTAGE
- Disconnect: Safety Belt Switch C3014.
- Key in ON position.
- Measure the voltage between the safety belt switch C3014 pin 4, harness side and ground.
  
  Fig 1: Checking Circuit 469 (LG) For Voltage
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 8.3 volts?
1. Yes : GO to R4.
2. No : GO to R5.
R4 CHECK CIRCUIT 57 (BK) FOR AN OPEN
- Key in OFF position.
- Disconnect: Driver Safety Belt Switch C3014.
- Measure the resistance between the driver safety belt switch C3014 pin 2, circuit 57 (BK), harness side and ground.
- Is the resistance less than 5 ohms?
1. Yes : INSTALL a new driver safety belt switch. REFER to SAFETY BELT SYSTEM . TEST the system for normal operation.
2. No : REPAIR the circuit. TEST the system for normal operation.
R5 CHECK CIRCUIT 469 (LG) FOR AN OPEN
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Measure the resistance between the instrument cluster C220a pin 9, circuit 469 (LG), harness side and the safety belt buckle switch C3014 pin 4, circuit 469 (LG), harness side.
  
  Fig 3: Checking Circuit 469 (LG) For An Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
1. Yes : GO to R8.
2. No : REPAIR the circuit. TEST the system for normal operation.
R6 CHECK THE SAFETY BELT BUCKLE SWITCH
- Key in OFF position.
- Disconnect: Safety Belt Buckle Switch C3014.
- Key in ON position.
- Observe the safety belt warning indicator.
- Does the safety belt warning indicator continue to illuminate?
1. Yes : GO to R7.
2. No : INSTALL a new safety belt buckle switch. TEST the system for normal operation.
R7 CHECK CIRCUIT 469 (LG) FOR A SHORT TO GROUND
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Measure the resistance between the instrument cluster C220a pin 9, circuit 469 (LG), harness side and ground.
  
  Fig 4: Checking Circuit 469 (LG) For Short To Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
1. Yes : GO to R8.
2. No : REPAIR the circuit. TEST the system for normal operation.
R8 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all instrument cluster connectors.
- Check for:
- Corrosion
- Pushed-out pins
- Connect all instrument cluster 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 instrument cluster. REFER to INSTRUMENT CLUSTER . CLEAR the DTCs. 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 instrument cluster self-test.