| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001HIA1 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [02/2019 - 08/2020] |
| Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (w/ Occupant Classification System): B1635,B1637; Curtain Shield Airbag Sensor (LH); 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020] | ||
|
DTC |
B1635 |
Curtain Shield Airbag Sensor (LH) |
|
DTC |
B1637 |
Curtain Shield Airbag Sensor Lost Communication (LH) |
DESCRIPTION
The side collision sensor LH circuit consists of the airbag ECU assembly, side airbag pressure sensor LH and No. 2 side airbag sensor assembly LH.
The No. 2 side airbag sensor assembly LH detects impacts to the vehicle and send signals to the airbag ECU assembly to determine if the SRS should be deployed.
These DTCs are stored when a malfunction is detected in the No. 2 side airbag sensor assembly LH or airbag ECU assembly.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
Test Mode / Check Mode |
|---|---|---|---|---|---|
|
B1635 |
Curtain Shield Airbag Sensor (LH) |
Either condition is met:
|
|
Comes on |
Not applicable |
|
B1637 |
Curtain Shield Airbag Sensor Lost Communication (LH) |
Either condition is met:
|
|
Comes on |
Not applicable |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.
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![2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION](/t3Portal/stylegraphics/info.gif)
-
When disconnecting the cable from the negative (-) auxiliary battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected.
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-
After replacing the airbag ECU assembly, refer to initialization.
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PROCEDURE
|
1. |
CHECK NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH |
|
(a) Turn the ignition switch off. |
|
(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.
(c) Interchange the No. 2 side airbag sensor assembly LH with RH and connect the connectors to them.
(d) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(e) Turn the ignition switch to ON, and wait for at least 60 seconds.
(f) Clear the DTCs stored in memory.
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Body Electrical > SRS Airbag > Clear DTCs
(g) Turn the ignition switch off.
(h) Turn the ignition switch to ON, and wait for at least 60 seconds.
(i) Check for DTCs.
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Body Electrical > SRS Airbag > Trouble Codes
HINT:
Codes other than DTC B1630, B1632, B1635 and B1637 may be output at this time, but they are not related to this check.
(j) Turn the ignition switch off.
(k) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.
(l) Return the No. 2 side airbag sensor assembly RH and LH to their original positions and connect the connectors to them.
| DTC B1635 or B1637 is output |
|
REPLACE AIRBAG ECU ASSEMBLY
|
| DTC B1630 or B1632 is output |
|
REPLACE NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH
|
| DTCs B1630, B1632, B1635 and B1637 are not output |
|
|
|