AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble Code
DTC B1836 OPEN IN CURTAIN AIRBAG LH SQUIB CIRCUIT
Diagnosis start condition:
Ignition voltage is 10 V to 16 V.
DTC detecting condition:
• Curtain airbag harness (LH) circuit is open.
• Curtain airbag module (LH) is faulty.
• Airbag control module is faulty.
CAUTION:
Before performing diagnosis, refer to “CAUTION” in “General Description”. General Description > CAUTION">
Wiring diagram:
Airbag system Airbag System > WIRING DIAGRAM">
STEP | CHECK | YES | NO |
1.CHECK POOR CONTACT OF CONNECTORS.
Check for poor contact of the connectors between the airbag control module, curtain airbag module LH and the curtain airbag sensor LH.
Is there poor contact?
Replace the airbag rear harness along with body harness.
Diagnostic Chart with Trouble Code > DTC B1836 OPEN IN CURTAIN AIRBAG LH SQUIB CIRCUIT">Go to Step 2.
2.CHECK CURTAIN AIRBAG MODULE.
1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more.
2) Disconnect the connector (AB31) from curtain airbag module (LH).
3) Connect the connector (1N) in the test harness N to the connector (AB31).
4) Connect the airbag resistor to the connector (2N) of test harness N.
5) Connect the battery ground terminal and turn the ignition switch to ON.
Does the airbag warning light illuminate for 6 seconds and go off?
Replace the curtain airbag module (LH). Curtain Airbag Module">
Diagnostic Chart with Trouble Code > DTC B1836 OPEN IN CURTAIN AIRBAG LH SQUIB CIRCUIT">Go to Step 3.
3.CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS LH).
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 connector (AB19) from side airbag module (LH).
4) Disconnect the airbag resistor from test harness N.
5) Disconnect the connectors (AB6, AB17, AB18) from airbag control module.
6) Connect the connector (1AG) in the test harness AG to the connectors (AB6, AB17, AB18).
7) Measure the resistance between connector (6AG) in the test harness AG and connector (2N) in the test harness N.
Connector & terminal
(6AG) No. 1 — (2N) No. 2:
(6AG) No. 3 — (2N) No. 1:
Is the resistance less than 10 ??
Diagnostic Chart with Trouble Code > DTC B1836 OPEN IN CURTAIN AIRBAG LH SQUIB CIRCUIT">Go to Step 4.
Replace the airbag rear harness along with body harness.
4.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)">
Is DTC B1836 displayed?
Replace the airbag control module. Airbag Control Module">
Diagnostic Chart with Trouble Code > DTC B1836 OPEN IN CURTAIN AIRBAG LH SQUIB CIRCUIT">Go to Step 5.
5.CHECK FOR ANY OTHER DTC ON DISPLAY.
Is any other DTC displayed?
Check DTC using “List of Diagnostic Trouble Code (DTC)”. List of Diagnostic Trouble Code (DTC)">
Finish the diagnosis.
Steering switches for audio
Some parts of the audio/visual system can
be adjusted using the switches on the
steering wheel.
+ − switch
switch
Mute/Enter switch
List switch
Back switch
Source switch
+/− switch
Mode
Operation
Function
Except list screen
Press
V ...
Caution
AIRBAG SYSTEM > General DescriptionCAUTION1. BEFORE STARTING ALL WORKS• Before performing vehicle maintenance, turn the ignition switch to OFF and disconnect the negative terminal from battery. NOTE">• The airbag system (including pretensioner) is fitted with a backup power s ...
Viewing range on the screen
CAUTION
The range that can be viewed with
the rear view camera is limited.
Always be sure to check with your
eyes when moving backward and
proceed slowly.
Range of view
Range of view
Image from camera
The area from the rear end of the bumper
can be viewed. Areas at both ends ...