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Diagnostic Procedure

DTC B14FD:00 [VEHICLE CONTROL MODULE] DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 INSPECT VEHICLE CONTROL MODULE (VCM) AND BODY CONTROL MODULE (BCM) FOR MALFUNCTION
  • Perform the DTC inspection for the vehicle control module (VCM) and the body control module (BCM). (See DTC INSPECTION .)
  • Is a DTC related to an internal malfunction displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
(See DTC TABLE [BODY CONTROL MODULE (BCM) (US)] .)
No Go to the next step.
2 INSPECT PARKING ASSIST UNIT (ULTRASONIC) FOR MALFUNCTION
  • Perform the DTC inspection for the parking assist unit (ultrasonic). (See DTC INSPECTION .)
  • Is a DTC displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PARKING ASSIST UNIT (ULTRASONIC) (US)] .)
No Go to the next step.
3 INSPECT PCM FOR MALFUNCTION
  • Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
  • Is a DTC displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (VINs 7, L, M) (US)] .)
(See DTC TABLE [PCM (VIN Y) (US))] .)
No Go to the next step.
4 VERIFY IF PARKING ASSIST UNIT (ULTRASONIC) FUNCTION IS STOPPED DUE TO DECREASE IN AMBIENT TEMPERATURE
  • Start the engine and move the vehicle to a warm place.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Replace the parking assist unit (ultrasonic) and perform the repair completion verification.
(See PARKING ASSIST UNIT (ULTRASONIC) REMOVAL/INSTALLATION .)
No Explain to the customer that the parking assist unit (ultrasonic) function stopped due to a decrease in the ambient temperature, and then go to repair completion verification 2.
Repair completion verification 1 VERIFY THAT VEHICLE IS REPAIRED
  • Install/connect the part removed/disconnected during the troubleshooting procedure.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US) .)
If the CAN communication is normal, perform the diagnosis from Step 1.
No Go to the next step.
Repair completion verification 2 VERIFY IF OTHER DTC IS DISPLAYED
  • Perform the DTC inspection. (See DTC INSPECTION .)
  • Are any other DTCs displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
No DTC troubleshooting completed.
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