Pinpoint Test A: The Driver Seat Module (DSM) Does Not Respond To The Diagnostic Tool

A1 CHECK CIRCUIT 1003 (GY/YE) FOR VOLTAGE
- Key in OFF position.
- Disconnect: DSM C341g.
- Key in ON position.
- Measure the voltage between the DSM C341g-1, circuit 1003 (GY/YE), harness side and ground.
  
  Fig 1: Measuring Voltage Between DSM C341g-1, Circuit 1003 (GY/YE), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
1. Yes : GO to A2.
2. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the diagnostic tool data link test.
A2 CHECK CIRCUIT 566 (DG) FOR VOLTAGE
- Key in OFF position.
- Disconnect: DSM C341e.
- Key in ON position.
- Measure the voltage between the DSM C341e-1, circuit 566 (DG), harness side and ground.
  
  Fig 2: Measuring Voltage Between DSM C341e-1, Circuit 566 (DG), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
1. Yes : GO to A3.
2. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the diagnostic tool data link test.
A3 CHECK CIRCUIT 1205 (BK) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between the DSM C341e-2, circuit 1205 (BK), harness side and ground.
  
  Fig 3: Measuring Resistance Between DSM C341e-2, Circuit 1205 (BK), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
1. Yes : GO to A4.
2. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the diagnostic tool data link test.
A4 CHECK CIRCUIT 1203 (BK/LB) FOR AN OPEN
- Measure the resistance between the DSM C341g-6, circuit 1203 (BK/LB), harness side and ground.
  
  Fig 4: Measuring Resistance Between DSM C341g-6, Circuit 1203 (BK/LB), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
1. Yes : REFER to MODULE COMMUNICATIONS NETWORK to continue communication diagnosis.
2. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the diagnostic tool data link test.