DTC Troubleshooting: B0052-13

DTC B0052-13: Open or Increased Resistance in the Front Passenger's Seat Belt Buckle Switch

NOTE:

	Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components of the correct part number, and that they were properly installed.
	Before doing this troubleshooting procedure, review SRS Precautions and Procedures, General Troubleshooting Information, and 12 Volt Battery Terminal Disconnection and Reconnection.

DTC Description	DTC
B0052-13 Open or increased resistance in the front passenger's seat belt buckle switch

Problem verification:

Problem verification

?1.	Clear the DTCs with the HDS.

?2.	Turn the vehicle to the ON mode, then wait for 10 seconds. Buckle and unbuckle the front passenger's seat belt several times.

?3.

Check for DTCs with the HDS.

DTC Description	DTC
B0052-13 Open or increased resistance in the front passenger's seat belt buckle switch

Is DTC B0052-13 indicated?


	YES

The failure is duplicated. Go to step 2.


	NO

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.?

Front passenger's seat belt buckle switch check:

Front passenger's seat belt buckle switch check

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.	Disconnect the front passenger's seat belt buckle switch 2P connector (A) on the right side wire harness or the front passenger's seat wire harness.

?3.

Without power seat: Connect terminals A and B with a jumper wire.

Terminal A	Front passenger's seat belt buckle switch 2P connector No. 1 (on the right side wire harness)
Terminal B	Front passenger's seat belt buckle switch 2P connector No. 2 (on the right side wire harness)

?4.

With power seat: Connect terminals A and B with a jumper wire.

Terminal A	Front passenger's seat belt buckle switch 2P connector No. 1 (on the front passenger's seat wire harness)
Terminal B	Front passenger's seat belt buckle switch 2P connector No. 2 (on the front passenger's seat wire harness)

?5.	Turn the vehicle to the ON mode, then wait for 10 seconds.

?6.

Check for DTCs with the HDS.

DTC Description	DTC
B0052-11 Short or decreased resistance in the front passenger's seat belt buckle switch

Is DTC B0052-11 indicated?


	YES

Open in the front passenger's seat belt buckle switch; replace the front passenger's seat belt buckle assembly, then clear the DTC.?


	NO (with power seat)

Go to step 5.


	NO (without power seat)

Go to step 3.

Open wire check (FRBC line):

Open wire check (FRBC line)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.	Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.

?3.	Remove the jumper wire from the front passenger's seat belt buckle switch 2P connector on the right side wire harness.

?4.

Disconnect the following connector.

SRS unit connector B (39P)

?5.

Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Front passenger's seat belt buckle switch 2P connector (on the right side wire harness): disconnected
	SRS unit connector B (39P): disconnected
Test point 1	Front passenger's seat belt buckle switch 2P connector No. 1 (on the right side wire harness)
Test point 2	SRS unit connector B (39P) No. 27

Is there 1.0 ? or less?


	YES

The FRBC wire is OK. Go to step 4.


	NO

Open in the right side wire harness; replace the right side wire harness, then clear the DTC.?

Open wire check (GND line):

Open wire check (GND line)

?1.

Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Front passenger's seat belt buckle switch 2P connector (on the right side wire harness): disconnected
	SRS unit connector B (39P): disconnected
Test point 1	Front passenger's seat belt buckle switch 2P connector No. 2 (on the right side wire harness)
Test point 2	Body ground

Is there 1.0 ? or less?


	YES

The GND wire is OK. Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit. If the DTC does not clear, replace the right side wire harness.?


	NO

Open in the right side wire harness; check for a poor ground at G652. If the ground is OK, replace the right side wire harness, then clear the DTC.?

Open wire check (FRBC line):

Open wire check (FRBC line)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.	Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.

?3.	Remove the jumper wire from the front passenger's seat belt buckle switch 2P connector on the front passenger's seat wire harness.

?4.

Disconnect the following connector.

SRS unit connector B (39P)

?5.

Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Front passenger's seat belt buckle switch 2P connector (on the front passenger's seat wire harness): disconnected
	SRS unit connector B (39P): disconnected
Test point 1	Front passenger's seat belt buckle switch 2P connector No. 2 (on the front passenger's seat wire harness)
Test point 2	SRS unit connector B (39P) No. 27

Is there 1.0 ? or less?


	YES

The FRBC wire is OK. Go to step 6.


	NO

Open in the right side wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.?

Open wire check (GND line):

Open wire check (GND line)

?1.

Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Front passenger's seat belt buckle switch 2P connector (on the front passenger's seat wire harness): disconnected
	SRS unit connector B (39P): disconnected
Test point 1	Front passenger's seat belt buckle switch 2P connector No. 1 (on the front passenger's seat wire harness)
Test point 2	Body ground

Is there 1.0 ? or less?


	YES


	NO

Open in the right side wire harness or the front passenger's seat wire harness; check for a poor ground at G652. If the ground is OK, replace the faulty harness, then clear the DTC.?