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Home >> Mazda >> 2021 >> CX-30 Turbo Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 101 (On-Board Diagnostic - Body Control Module (BCM) (2 Of 3)) >> DTC P0616-24: Circuit Malfunction On Downstream Side Of Starter Relay (BCM) (Us) >> Diagnostic Procedure

Diagnostic Procedure

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DTC P0616:24 (BCM) (US) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 VERIFY BODY CONTROL MODULE (BCM) DTCs AGAIN
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • With the programmed remote transmitter in the vehicle, switch the ignition ON (engine off).
  • Perform the following work 5 times or more.
  • Depress the clutch pedal. (MTX)
    • Operate the selector lever to P or N position from other than P and N position and hold for 0.5 s or more. (ATX)
  • Perform the DTC inspection for the body control module (BCM). (See DTC INSPECTION .)
  • Is the same Pending DTC present?
Yes Go to the next step.
No Go to repair completion verification 2.
2 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 (SKYACTIV-G (US))] .)
 
No Go to the next step.
3 INSPECT BODY CONTROL MODULE (BCM) CONNECTOR FOR MALFUNCTION
  • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION .)
  • Are the connector and terminal normal?
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification.
4 INSPECT PCM CONNECTOR FOR MALFUNCTION
  • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION .)
  • Are the connector and terminal normal?
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification.
5 INSPECT STARTER RELAY DOWNSTREAM CIRCUIT FOR OPEN CIRCUIT
  • Inspect the applicable circuit for an open circuit. (See CIRCUIT INSPECTION .)
  • Is the circuit normal?
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification.
6 INSPECT PCM FOR MALFUNCTION DEPENDING ON REPEATABILITY
  • Install/connect the part removed/disconnected during the troubleshooting procedure.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • With the programmed remote transmitter in the vehicle, switch the ignition ON (engine off).
  • Perform the following work 5 times or more.
  • Depress the clutch pedal. (MTX)
    • Operate the selector lever to P or N position from other than P and N position and hold for 0.5 s or more. (ATX)
  • Perform the DTC inspection for the body control module (BCM). (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, replace the PCM and perform the repair completion verification.
(See PCM REMOVAL/INSTALLATION (VIN M) .)
(See PCM REMOVAL/INSTALLATION (VIN L) .)
 
No 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 .)
  • With the programmed remote transmitter in the vehicle, switch the ignition ON (engine off).
  • Perform the following work 5 times or more.
  • Depress the clutch pedal. (MTX)
    • Operate the selector lever to P or N position from other than P and N position and hold for 0.5 s or more. (ATX)
  • Perform the DTC inspection for the body control module (BCM). (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.