| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001QM5N |
| Model Year Start: 2021 | Model: RAV4 | Prod Date Range: [08/2020 - ] |
| Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1815-B1818; Short in P Squib (Dual Stage - 2nd Step) Circuit; 2021 - 2024 MY RAV4 RAV4 HV [08/2020 - ] | ||
|
DTC |
B1815 |
Short in P Squib (Dual Stage - 2nd Step) Circuit |
|
DTC |
B1816 |
Open in P Squib (Dual Stage - 2nd Step) Circuit |
|
DTC |
B1817 |
Short in P Squib (Dual Stage - 2nd Step) Circuit (to Ground) |
|
DTC |
B1818 |
Short in P Squib (Dual Stage - 2nd Step) Circuit (to +B) |
DESCRIPTION
The front passenger side squib 2nd step circuit consists of the airbag ECU assembly and instrument panel passenger without door airbag assembly.
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are stored when a malfunction is detected in the front passenger side squib 2nd step circuit.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
Test Mode / Check Mode |
|---|---|---|---|---|---|
|
B1815 |
Short in P Squib (Dual Stage - 2nd Step) Circuit |
One of the following conditions is met:
|
|
Comes on |
Applicable |
|
B1816 |
Open in P Squib (Dual Stage - 2nd Step) Circuit |
One of the following conditions is met:
|
|
Comes on |
Applicable |
|
B1817 |
Short in P Squib (Dual Stage - 2nd Step) Circuit (to Ground) |
One of the following conditions is met:
|
|
Comes on |
Applicable |
|
B1818 |
Short in P Squib (Dual Stage - 2nd Step) Circuit (to +B) |
One of the following conditions is met:
|
|
Comes on |
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.
Click here
![2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; 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.
Click here
-
After replacing the airbag ECU assembly, refer to initialization.
Click here
HINT:
To perform the simulation method, enter check mode (signal check) with the Techstream (Click here
), and then wiggle each connector of the airbag system or drive the vehicle on various types of road (Click here
).
PROCEDURE
|
1. |
CHECK CONNECTORS |
|
(a) Turn the ignition switch off. |
|
(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.
(c) Check that the connectors are properly connected to the instrument panel passenger without door airbag assembly (front passenger side squib 2nd step) and airbag ECU assembly. Also check that the connectors that link the instrument panel wire and No. 2 instrument panel wire are properly connected.
OK:
The connectors are properly connected.
HINT:
If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.
(d) Disconnect the connectors from the instrument panel passenger without door airbag assembly (front passenger side squib 2nd step) and airbag ECU assembly. Also disconnect the instrument panel wire from the No. 2 instrument panel wire.
(e) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
(f) Check that the No. 2 instrument panel wire connector (on the instrument panel passenger without door airbag assembly (front passenger side squib 2nd step) side) is not loose, deformed or damaged.
OK:
The connector locking button is not disengaged, and the claw of the lock is not deformed or damaged.
(g) Check that the short springs of the activation prevention mechanisms of the instrument panel wire connector and No. 2 instrument panel wire connector are not deformed or damaged.
OK:
The short springs are not deformed or damaged.
| NG |
|
REPLACE INSTRUMENT PANEL WIRE OR NO. 2 INSTRUMENT PANEL WIRE |
|
|
2. |
CHECK INSTRUMENT PANEL PASSENGER WITHOUT DOOR AIRBAG ASSEMBLY (FRONT PASSENGER SIDE SQUIB 2ND STEP) |
|
(a) Connect the instrument panel wire to the No. 2 instrument panel wire and airbag ECU assembly. |
|
(b) Connect the white wire side of SST (resistance: 2.1 Ω) to connector E (black connector).
CAUTION:
Never connect the tester to the instrument panel passenger without door airbag assembly for measurement, as this may lead to a serious injury due to airbag deployment.
NOTICE:
- Do not forcibly insert SST into the terminals of the connector when connecting SST.
- Insert SST straight into the terminals of the connector.
SST: 09843-18061
(c) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
(e) Clear the DTCs stored in memory.
Click here
Body Electrical > SRS Airbag > Clear DTCs
(f) Turn the ignition switch off.
(g) Turn the ignition switch to ON, and wait for at least 60 seconds.
(h) Check for DTCs.
Click here
Body Electrical > SRS Airbag > Trouble Codes
HINT:
Codes other than DTCs B1815, B1816, B1817 and B1818 may be output at this time, but they are not related to this check.
(i) Turn the ignition switch off.
(j) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.
(k) Disconnect SST from connector E.
| DTCs B1815, B1816, B1817 and B1818 are not output |
|
REPLACE INSTRUMENT PANEL PASSENGER WITHOUT DOOR AIRBAG ASSEMBLY
|
|
|
3. |
CHECK FRONT PASSENGER SIDE SQUIB CIRCUIT |
(a) Disconnect the instrument panel wire from the airbag ECU assembly.
|
*1 |
Instrument Panel Passenger without Door Airbag Assembly (Front Passenger Side Squib 2nd Step) |
|
*2 |
Airbag ECU Assembly |
|
*a |
Front view of wire harness connector (to Instrument Panel Passenger without Door Airbag Assembly (Front Passenger Side Squib 2nd Step)) |
|
*b |
Color: Black |
|
Release the activation prevention mechanism |
(b) Check for a short to B+ in the circuit.
(1) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(2) Turn the ignition switch to ON.
(3) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G117-1 (P2-) - Body ground |
Ignition switch ON |
Below 1 V |
|
G117-2 (P2+) - Body ground |
Ignition switch ON |
Below 1 V |
(4) Turn the ignition switch off.
(5) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.
(c) Check for an open in the circuit.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G117-1 (P2-) - G117-2 (P2+) |
Always |
Below 1 Ω |
(d) Check for a short to ground in the circuit.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G117-1 (P2-) - Body ground |
Always |
1 MΩ or higher |
|
G117-2 (P2+) - Body ground |
Always |
1 MΩ or higher |
(e) Check for a short in the circuit.
(1) Release the activation prevention mechanism built into connector B.
Click here
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G117-1 (P2-) - G117-2 (P2+) |
Always |
1 MΩ or higher |
(3) Restore the released activation prevention mechanism of connector B to the original condition.
| NG |
|
|
|
4. |
CHECK DTC |
|
(a) Connect the connectors to the instrument panel passenger without door airbag assembly and airbag ECU assembly. |
|
(b) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
(d) Clear the DTCs stored in memory.
Click here
Body Electrical > SRS Airbag > Clear DTCs
(e) Turn the ignition switch off.
(f) Turn the ignition switch to ON, and wait for at least 60 seconds.
(g) Check for DTCs.
Click here
Body Electrical > SRS Airbag > Trouble Codes
HINT:
Codes other than DTC B1815, B1816, B1817 and B1818 may be output at this time, but they are not related to this check.
| DTCs B1815, B1816, B1817 and B1818 are not output |
|
| DTC B1815, B1816, B1817 or B1818 is output |
|
REPLACE AIRBAG ECU ASSEMBLY
|
|
5. |
CHECK INSTRUMENT PANEL WIRE |
(a) Disconnect the No. 2 instrument panel wire from the instrument panel wire.
|
*1 |
Instrument Panel Passenger without Door Airbag Assembly (Front Passenger Side Squib 2nd Step) |
|
*2 |
Airbag ECU Assembly |
|
*3 |
No. 2 Instrument Panel Wire |
|
*4 |
Instrument Panel Wire |
|
*a |
Front view of wire harness connector (to No. 2 Instrument Panel Wire) |
|
|
Release the activation prevention mechanism |
(b) Check for a short to B+ in the circuit.
(1) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(2) Turn the ignition switch to ON.
(3) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
GG1-3 (P2+) - Body ground |
Ignition switch ON |
Below 1 V |
|
GG1-4 (P2-) - Body ground |
Ignition switch ON |
Below 1 V |
(4) Turn the ignition switch off.
(5) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.
(c) Check for an open in the circuit.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
GG1-3 (P2+) - GG1-4 (P2-) |
Always |
Below 1 Ω |
(d) Check for a short to ground in the circuit.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
GG1-3 (P2+) - Body ground |
Always |
1 MΩ or higher |
|
GG1-4 (P2-) - Body ground |
Always |
1 MΩ or higher |
(e) Check for a short in the circuit.
(1) Release the activation prevention mechanism built into connector B.
Click here
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
GG1-3 (P2+) - GG1-4 (P2-) |
Always |
1 MΩ or higher |
(3) Restore the released activation prevention mechanism of connector B to the original condition.
| OK |
|
REPLACE NO. 2 INSTRUMENT PANEL WIRE |
| NG |
|
REPLACE INSTRUMENT PANEL WIRE |
|
|