Toyota Tundra. Manual — part 2566

2. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

SST 09843-18040

Fig. 49: Identifying DLC3 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Check the DTCs (Past trouble code).

1. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

SST 09843-18040

2. Turn the ignition switch ON, and wait for approximately 60 seconds.

c. Read the DTCs.

1. Read the blinking patterns of the DTCs. As examples, the blinking patterns for the normal

system code and trouble codes 11 and 31 are shown below.



Normal system code indication (without past trouble code)

The light blinks twice per second.



Normal system code indication (with past trouble code)

When the past trouble code is stored in the center airbag sensor, the light blinks only
once per second.



Trouble code indication

The first blinks indicates the first DTC. The second blinks occurs after a 1.5-second
pause.

NOTE:

Connect the terminals to the correct positions to avoid a
malfunction.

NOTE:

Connect the terminals to the correct positions to avoid a
malfunction.

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

HINT:



If there is more than 1 code, there will be a 2.5-second pause between each code. After
all codes are shown, there will be a 4.0-second pause, and then all codes will be
repeated.



If 2 or more malfunctions are found, the indication begins with the smaller-numbered
code.



If DTCs are indicated without connecting the terminals, proceed to DIAGNOSIS
CIRCUIT .

Fig. 50: Identifying DTC Trouble Codes 11 & 31 Blinking Pattern
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. CLEAR DTC (Using SST Check Wire)

a. When the ignition switch is turned OFF, the DTCs are cleared.

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

HINT:

Depending on the DTC, the code may not be cleared by turning OFF the ignition switch. In this
case, proceed to the next procedure.

b. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3, and then turn the ignition switch

ON.

SST 09843-18040

c. Disconnect SST from terminal 13 (TC) of the DLC3 within 3 to 10 seconds after the DTCs are

output, and check if the SRS warning light comes on after 3 seconds.

d. Within 2 to 4 seconds after the SRS warning light comes on, connect terminals 13 (TC) and 4 (CG)

of the DLC3.

e. The SRS warning light should go off within 2 to 4 seconds after connecting terminals 13 (TC) and

4 (CG) of the DLC3. Then, disconnect terminal 13 (TC) within 2 to 4 seconds after the SRS
warning light goes off.

f. The SRS warning light comes on again within 2 to 4 seconds after disconnecting terminal 13 (TC).

Then, reconnect terminals 13 (TC) and 4 (CG) within 2 to 4 seconds after the SRS warning light
comes on.

g. Check if the SRS warning light goes off within 2 to 4 seconds after connecting terminals 13 (TC)

and 4 (CG) of the DLC3. Also check if the normal system code is output within 1 second after the
SRS warning light goes off.

If DTCs are not cleared, repeat this procedure until the codes are cleared.

Fig. 51: Identifying SRS Warning Light Flash-Pattern

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. CHECK DTC (Using Techstream)

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the Techstream on.

d. Enter the following menus: Body Electrical/SRS Airbag/Trouble Codes.

e. Read the DTCs.

4. CLEAR DTC (Using Techstream)

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the Techstream on.

d. Enter the following menus: Body Electrical/SRS Airbag/Trouble Codes.

e. Erase the DTCs.

CHECK MODE PROCEDURE

1. CHECK MODE PROCEDURE (Using Techstream)

HINT:



DTCs can be detected more sensitively in check mode than in normal diagnosis mode.



Perform check mode inspection when a malfunction in each squib circuit is suspected even after the
normal system code is output through normal diagnosis mode inspection.

a. Check and ensure the following conditions:

1. Battery positive voltage 11 V or higher.

2. Shift lever in the P or N position.

3. A/C switch off.

b. Turn the ignition switch OFF.

c. Connect the Techstream to the DLC3.

d. Turn the ignition switch ON.

e. Turn the Techstream on.

f. Enter the following menus: Body Electrical/SRS Airbag/Check Mode.

DATA LIST/ACTIVE TEST

1. READ DATA LIST

HINT:

NOTE:

Select "Signal Check" from the "DTC Check" screen displayed on the
Techstream to clear the output DTCs (both present and past).

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra