DTC B13D3:16 [START STOP UNIT]

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2014 - Mazda6 - Body and Accessories

DTC B13D3:16 [START STOP UNIT]


Description	Low remote transmitter battery voltage
Detection condition	Start stop unit detects the low remote transmitter battery voltage in any of the programmed transmitters 3 times continuously.
Vehicle status when DTCs are output	All lock/unlock operations using the advanced keyless entry system, push button start system, and remote transmitter are not possible.
Fail-safe function	Not applicable
Possible cause	Soiling around remote transmitter battery, or foreign matter adhering Remote transmitter battery is dead. Specific remote transmitter is malfunctioning.
System wiring diagram	Not applicable

Diagnostic Procedure

1. Verify the TRANS_NUM_L of the snapshot data item and then the registration number of the remote transmitter in which low battery voltage was detected.

2. Using the M-MDS, display the PID item RF_TRANS_NUM for the start stop unit.

3. Press the unlock button of the remote transmitter to verify the registration numbers of all the programmed remote transmitters.

4. Perform the Remote Transmitter Diagnostic Procedure using the remote transmitter corresponding to the registration number of the remote transmitter detected using the snapshot data.

Remote Transmitter Diagnostic Procedure


Step	Inspection		Action
1	INSPECT AREA AROUND REMOTE TRANSMITTER BATTERY Inspect the area around the remote transmitter battery. Is the area around the transmitter battery soiled or is there foreign mattering adhering?	Yes	Remove dirt or foreign matter, then go to the next step.
1		No	Go to the next step.
2	VERIFY IF MALFUNCTION CAUSE IS DEAD REMOTE TRANSMITTER BATTERY Clear the DTC for the start stop unit using the M-MDS. (See CLEARING DTC [START STOP UNIT].) Retrieve the start stop unit DTCs using the M-MDS. (See DTC INSPECTION [START STOP UNIT].) Is the same DTC displayed?	Yes	Replace the remote transmitter battery, then go to the next step. (See REMOTE TRANSMITTER DISASSEMBLY/ASSEMBLY.)
2		No	Go to Step 4
3	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Clear the DTC for the start stop unit using the M-MDS. (See CLEARING DTC [START STOP UNIT].) Retrieve the start stop unit DTCs using the M-MDS. (See DTC INSPECTION [START STOP UNIT].) Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the remote transmitter. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING.) Go to the next step.
3		No	Go to the next step.
4	VERIFY IF OTHER DTCs DISPLAYED Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [START STOP UNIT].)
4		No	DTC troubleshooting completed.

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