DTC B00C0-87

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DTC B00C0-87 : No Signal From the Front Passenger's Weight Sensor (front inner side)

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 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
B00C0-87 No signal from the front passenger's weight sensor (front inner side)

DTC (SRS)

Problem verification

-1. Apply the parking brake.

-2. Clear the DTCs with the HDS.

-3. Turn the vehicle to the ON mode, then wait for 10 seconds.

-4. Check for DTCs with the HDS.

DTC Description	DTC
B00C0-87 No signal from the front passenger's weight sensor (front inner side)

Is DTC B00C0-87 indicated?

YES

The failure is duplicated. Go to step 2.

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

Connector connection check
-1. Turn the vehicle to the OFF (LOCK) mode.

-2. From under the front passenger's seat, check the connection of the connector (A) between the floor wire harness and the front passenger's seat wire harness.

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Is the connector OK?

YES

Go to step 4.

NO

Go to step 3.

System check

-1. Reset the loose connections that caused the problem in step 2.

-2. Clear the DTCs with the HDS.

-3. Turn the vehicle to the ON mode, then wait for 10 seconds.

-4. Check for DTCs with the HDS.

DTC Description	DTC
B00C0-87 No signal from the front passenger's weight sensor (front inner side)

Is DTC B00C0-87 indicated?

YES

Turn the vehicle to the OFF (LOCK) mode, then go to step 4.

The system is OK at this time.

Open wire check (SWS+/PWR SWS line)

-1. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.

-2. Disconnect the following connectors.

SRS unit connector B (57P)

Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness)

-3. Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	SRS unit connector B (57P): disconnected
	Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness): disconnected
Test point 1	SRS unit connector B (57P) No. 43
Test point 2	Front passenger's weight sensor (front inner side) 3P connector (female terminals) No. 1 (on the front passenger's seat wire harness):

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Is there 1.0 Ω or less?

YES

The SWS+/PWR SWS wire is OK. Go to step 5.

Open or increased resistance in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

Open wire check (SWS-/GND SWS line)

-1. Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	SRS unit connector B (57P): disconnected
	Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness): disconnected
Test point 1	SRS unit connector B (57P) No. 24
Test point 2	Front passenger's weight sensor (front inner side) 3P connector (female terminals) No. 3 (on the front passenger's seat wire harness):

Courtesy of HONDA, U.S.A., INC.

Is there 1.0 Ω or less?

YES

The SWS-/GND SWS wire is OK. Go to step 6.

Open or increased resistance in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

Open wire check (SWSS/LIN SWS line)

-1. Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	SRS unit connector B (57P): disconnected
	Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness): disconnected
Test point 1	SRS unit connector B (57P) No. 41
Test point 2	Front passenger's weight sensor (front inner side) 3P connector (female terminals) No. 2 (on the front passenger's seat wire harness):

Courtesy of HONDA, U.S.A., INC.

Is there 1.0 Ω or less?

YES

The SWSS/LIN SWS wire is not open. Go to step 7.

Open or increased resistance in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

Shorted wire check (SWSS/LIN SWS line to power)

-1. Disconnect the following connector.

Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness)

-2. Reconnect the negative cable to the 12 volt battery.

-3. Turn the vehicle to the ON mode.

-4. Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
	SRS unit connector B (57P): disconnected
	Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness): disconnected
	Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness): disconnected
Test point 1	SRS unit connector B (57P) No. 41
Test point 2	Body ground

Is there 0.2 V or less?

YES

The SWSS/LIN SWS wire is not shorted to power. Go to step 8.

Short to power in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

Shorted wire check (SWSS/LIN SWS line)

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

-2. Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	SRS unit connector B (57P): disconnected
	Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness): disconnected
	Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness): disconnected
Test point 1	SRS unit connector B (57P) No. 41
Test point 2	Body ground

Is there an open circuit, or at least 1 MΩ?

YES

The SWSS/LIN SWS wire is not shorted. Go to step 9.

Short to ground in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

Shorted wire check (SWSS/LIN SWS line to SWS-/GND SWS line)

-1. Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	SRS unit connector B (57P): disconnected
	Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness): disconnected
	Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness): disconnected
Test point 1	SRS unit connector B (57P) No. 41
Test point 2	SRS unit connector B (57P) No. 24

Is there an open circuit, or at least 1 MΩ?

YES

The SWSS/LIN SWS and SWS-/GND SWS wires are not shorted. Go to step 10.

Short to another wire in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

Shorted wire check (SWSS/LIN SWS line to SWS+/PWR SWS line)

-1. Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	SRS unit connector B (57P): disconnected
	Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness): disconnected
	Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness): disconnected
Test point 1	SRS unit connector B (57P) No. 41
Test point 2	SRS unit connector B (57P) No. 43

Is there an open circuit, or at least 1 MΩ?

YES

The SWSS/LIN SWS and SWS+/PWR SWS wires are OK. Go to step 11.

Short to another wire in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

Front passenger's weight sensor check

-1. Substitute a known-good front passenger's weight sensors as an assembly .

-2. Reconnect the following connectors.

SRS unit connector B (57P)

Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness)

Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness)

-3. Reconnect the negative cable to the 12 volt battery.

-4. Clear the DTCs with the HDS.

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

-6. Check for DTCs with the HDS.

DTC Description	DTC
B00C0-87 No signal from the front passenger's weight sensor (front inner side)

Is DTC B00C0-87 indicated?

YES

The front passenger's weight sensor is OK. Faulty SRS unit or poor connection at SRS unit connector B (57P) and the SRS unit. Check the connection; if the connection is OK, check for any authorized service information related to the DTCs or symptoms you are troubleshooting or replace the SRS unit . If the DTC does not clear, replace the floor wire harness or the front passenger's seat wire harness.

Faulty front passenger's weight sensor. Replace the front passenger's weight sensors as an assembly .