DTC B1698 Door Sensor LH Initialization Incomplete: Wiring Diagram

See appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: Airbag System - Wiring Diagram

G07914593

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK DTC. Read the DTC. (Current malfunction)	Is DTC B1627 or B1628 displayed?	Perform the diagnosis according to DTC.	Go to step 2 .
2 CHECK DTC. Read the DTC. (Current malfunction)	Is DTC B1637 or B1638 displayed?	Perform the diagnosis according to DTC.	Go to step 3 .
3 CHECK POOR CONTACT OF CONNECTORS. Check for poor contact of the connectors between the airbag control module and the front door impact sensor (LH).	Is there poor contact?	Replace the airbag rear harness and the door harness.	Go to step 4 .
4 CHECK AIRBAG REAR HARNESS AND DOOR HARNESS (BETWEEN CURTAIN AIRBAG SENSOR LH AND FRONT DOOR IMPACT SENSOR LH). Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. Disconnect the connector (AB21) from seat belt pretensioner (LH). Disconnect the connector (AB31) from curtain airbag module (LH). Disconnect connector (AB19) from side airbag module (LH). Disconnect the connector (AB32) from curtain airbag sensor (LH), and connect the connector (2V) in test harness V to connector (AB32). Disconnect the connector (AB58) from the front door impact sensor (LH), and connect the connector (1H) in the test harness H to connector (AB58). Measure the resistance between connector (3V) in the test harness V and connector (3H) in the test harness H. Connector & terminal (3V) No. 4 - (3H) No. 5: (3V) No. 5 - (3H) No. 6:	Is the resistance less than 10 Ω?	Go to step 5 .	Check the door harness, and if any fault is found, replace the harness. If there is no fault, replace the airbag rear harness together with body harness.
5 CHECK AIRBAG REAR HARNESS AND DOOR HARNESS (BETWEEN CURTAIN AIRBAG SENSOR LH AND FRONT DOOR IMPACT SENSOR LH). Measure the resistance between connector (3V) in test harness V and chassis ground, and the resistance between connector (3V) terminals in test harness V. Connector & terminal (3V) No. 4 - Chassis ground: (3V) No. 5 - Chassis ground: (3V) No. 4 - (3V) No. 5:	Is the resistance 1 MΩ or more?	Go to step 6 .	Check the door harness, and if any fault is found, replace the harness. If there is no fault, replace the airbag rear harness together with body harness.
6 CHECK AIRBAG CONTROL MODULE. Connect all connectors. Clear the memory. Perform the Inspection Mode. Read the DTC. (Current malfunction)	Is the same DTC displayed?	Go to step 7 .	Go to step 9 .
7 REPLACE FRONT DOOR IMPACT SENSOR (LH) AND CHECK AIRBAG CONTROL MODULE AFTER REPLACEMENT. Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. Replace the front door impact sensor (LH). Refer to REMOVAL . Connect all connectors. Clear the memory. Perform the Inspection Mode. Read the DTC. (Current malfunction)	Is the same DTC displayed?	Go to step 8 .	Go to step 9 .
8 REPLACE CURTAIN AIRBAG SENSOR (LH) AND CHECK AIRBAG CONTROL MODULE AFTER REPLACEMENT. Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. Replace the curtain airbag sensor (LH). Refer to REMOVAL . Connect all connectors. Clear the memory. Perform the Inspection Mode. Read the DTC. (Current malfunction)	Is the same DTC displayed?	Replace the airbag control module. Refer to REMOVAL .	Go to step 9 .
9 CHECK FOR ANY OTHER DTC ON DISPLAY. Read the DTC. (Current malfunction)	Is any other DTC displayed?	Check DTC using "List of Diagnostic Trouble Code". Refer to LIST .	Finish the diagnosis.