1.CHECK DTC. Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC) | Is DTC B1627 or B1637 displayed- | Perform the diagnosis according to DTC. | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH |
2.CHECK POOR CONTACT OF CONNECTORS. Check for poor contact of the connectors between the airbag control module and the front door impact sensor LH. | | Replace the airbag rear harness and the door harness. | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH |
3.CHECK AIRBAG REAR HARNESS AND DOOR HARNESS (BETWEEN CURTAIN AIRBAG SENSOR LH AND FRONT DOOR IMPACT SENSOR LH) (OPEN CIRCUIT). 1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. 2) Disconnect the connector (AB21) from seat belt pretensioner LH. 3) Disconnect the connector (AB5) from seat cushion airbag module LH. 4) Disconnect the connector (AB31) from curtain airbag module LH. 5) Disconnect the connector (AB19) from side airbag module LH. 6) Disconnect the connector (AB32) from curtain airbag sensor LH, and connect the connector (2V) in test harness V to connector (AB32). 7) Disconnect the connector (AB58) from front door impact sensor LH. 8) Using a probe, measure the resistance between the connector (3V) terminal in test harness V and connector (AB58) terminal. General Description > PREPARATION TOOL CAUTION: When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly. Connector & terminal (3V) No. 4 — (AB58) No. 1: (3V) No. 5 — (AB58) No. 2: | Is the resistance less than 10 -- | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH | 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. |
4.CHECK AIRBAG REAR HARNESS AND DOOR HARNESS (BETWEEN CURTAIN AIRBAG SENSOR LH AND FRONT DOOR IMPACT SENSOR LH) (SHORTED TO GROUND AND SHORTED BETWEEN LINES). 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: | Is the resistance 1 M- or more- | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH | 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 CONTROL MODULE. 1) Connect all connectors. 2) Clear the memory. Clear Memory Mode 3) Perform the Inspection Mode. Inspection Mode 4) Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC) | | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH |
6.CHECK FRONT DOOR IMPACT SENSOR LH. 1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. 2) Disconnect the connector (AB58) from front door impact sensor LH. Front Door Impact Sensor > REMOVAL 3) Temporarily connect a new front door impact sensor to the connector (AB58). 4) Connect all connectors. 5) Clear the memory. Clear Memory Mode 6) Perform the Inspection Mode. Inspection Mode 7) Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC) | | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH | Replace the front door impact sensor LH. Front Door Impact Sensor > REMOVAL |
7.CHECK CURTAIN AIRBAG SENSOR LH. 1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. 2) Restore the front door impact sensor LH back to the original position. Front Door Impact Sensor > REMOVAL 3) Replace the curtain airbag sensor RH by the curtain airbag sensor LH. Curtain Airbag Sensor > REMOVAL 4) Connect all connectors. 5) Clear the memory. Clear Memory Mode 6) Perform the Inspection Mode. Inspection Mode 7) Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC) | | Replace the curtain airbag sensor LH. Curtain Airbag Sensor > REMOVAL | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH |
8.CHECK AIRBAG CONTROL MODULE. 1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. 2) Restore the curtain airbag sensors RH and LH back to their original position. Curtain Airbag Sensor > REMOVAL 3) Connect all connectors. 4) Clear the memory. Clear Memory Mode 5) Perform the Inspection Mode. Inspection Mode 6) Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC) | | Replace the airbag control module. Airbag Control Module > REMOVAL | Diagnostic Chart with Trouble Code > DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH |
9.CHECK FOR ANY OTHER DTC ON DISPLAY. Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC) | Is any other DTC displayed- | Check DTC using “List of Diagnostic Trouble Code”. List of Diagnostic Trouble Code (DTC) > LIST | |
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