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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

C. For 2015 model year Sienna vehicles NOT equipped with a heated steering wheel
(10-pin connector), insert PN 82998-08010 pin terminal into cavity 4 of connector Z2.
Figure 10.

9. Press lock tab down. Make sure lock tab is
fully seated by pressing in the areas
indicated by the arrows.

Figure 11.

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

10. Connect Sienna connector Z8 (12-pin
connector) or Z2 (10-pin connector) to
spiral cable.

Figure 12.

NOTE
Do NOT connect the Ring terminal end
at this step. Be sure to route the harness
under and away from SRS wiring.

Route the repair wire UNDER the existing
brown (or black) wire sheath, following the
path of the dotted line as shown. Do NOT
attach ring terminal at this time.
NOTE
If the brown (or black) sheathed harness
is routed to the right side of the steering
wheel, route the repair harness on that
side instead.

CAUTION
Place harness away from
airbag connections.

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

11. On the underneath side of the steering column, disconnect the spiral cable sub-assembly
connector D21 (12-pin connector) or D149 (14-pin connector) from the spiral cable
as indicated.
Figure 13. D21 or D149 Locations

Figure 14. D21, 12-Pin Connector

Figure 15. D149, 14-Pin Connector

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

12. Lift connector lock tab using same guidelines
in step 7.

Figure 16.

NOTE
Do NOT try to remove it. Only slightly lift.

13. Insert terminal according to model year below.
A. For 2014 model year Sienna, insert repair wire PN 82998-08030 pin terminal into cavity 3
of connector spiral cable sub-assembly D21.
Figure 17.

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

B. For 2015 model year Sienna or later, 14-pin connector, insert repair wire PN 82998-08020
into cavity 7 of spiral cable sub-assembly D149.
Figure 18.

C. For 2015 model year Sienna or later, 12-pin connector, insert repair wire PN 82998-08030
pin terminal into cavity 11 of spiral cable sub-assembly connector D21.
Figure 19.

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

14. Press lock tab down on the connector.

Figure 20.

15. Connect harness connector D21 (12-pin connector) or D149 (14-pin connector) to spiral cable.
16. Check resistance between the ring
terminals of both harnesses. The standard
resistance is less than one ohm. If
resistance is not as specified, check
installation of both harnesses.

Figure 21.

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

17. Secure repair wire PN 82998-08010 or 82998-0E010 ring terminal to cruise control switch
ground terminal.
A. Remove screw from cruise control switch ground terminal.
B. Place repair wire ring terminal over screw.
C. Reinstall screw in cruise control switch.

Figure 22.

Torque: 2.4 N*m (24 kgf*cm, 21 ft*lbf)

18. Route the repair wire from D21 or D149 on
the underside of the steering column,
following the arrows and routing along the
wire harness. Place three cable ties near
existing cable ties as shown.

Figure 23.

NOTE
 All cable ties must be placed on plastic
sheathing near existing locations.
 Check that the ignition switch is off.

CAUTION
Ensure no cable ties are applied on
unprotected parts of harness without
tape. They must be applied only
on sheathing.

1

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

19. Remove the steering column mount stud nut
indicated in the picture and attach ring
terminal to steering column mount stud.

Figure 24.

Torque: 27.5 N*m (280 kgf*cm, 20 ft*lbf)

20. Install steering pad.
CAUTION
Some of these service operations affect the SRS airbag system. Read the precautionary
notices concerning the SRS airbag system before installing the steering pad.
2014 / 2015 or later model year Sienna:
Vehicle Interior – Supplemental Restraint Systems – “Supplemental Restraint Systems:
Airbag System: Precaution”

A. Check that the ignition switch is off.
B. Check that the cable is disconnected from the negative ( – ) battery terminal.
CAUTION
Wait at least 90 seconds after disconnecting the cable from the negative ( – ) battery
terminal to disable the SRS system.

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

C. Connect the horn terminal.

Figure 25.

1

Locking Button

D. Connect the 2 airbag connectors to the steering pad.
NOTICE
 When connecting any airbag connector, take care not to damage the airbag wire harness.
 Be sure to only connect the connectors to each corresponding color.
 Securely lock the locking button.

E. For 2014 model year Sienna, confirm
that the circumference groove of each
screw fits in the screw case, and place
the steering pad onto the steering
wheel assembly.

Figure 26.

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

F. Using a T30 torx® socket wrench, tighten the 2 screws.
Torque: 8.8 N*m (90 kgf*cm, 78 ft*lbf)

G. For 2015 or later model year Sienna, engage the 3 pins with the 3 snap rings to install the
steering pad.
NOTICE
Pull the steering pad to ensure that it is securely engaged.

21. Install the upper steering column cover.
A. Engage the 4 clips and 2 guides to install the upper steering column cover onto the
instrument panel cluster finish panel.
B. Engage the claw to install the upper steering column cover.
22. Install the lower steering column cover.
A. Engage the 2 claws to install the lower steering column cover.
B. Install the 2 screws, except on Smart keys. These must be installed after the battery
is connected.
C. Connect the cable to the negative battery terminal.
Torque: 5.4 N*m (55 kgf*cm, 48 ft*lbf)
NOTICE
When reconnecting the battery cable, some systems need to be initialized after the cable
is reconnected.
2014 / 2015 Sienna:
Introduction – Repair Instruction – “Introduction: Repair Instruction: Initialization”

23. Make sure that the horn sounds. If the horn does not sound, inspect the horn system. Refer to
TIS, applicable model and model year Repair Manual:


2014 / 2015 Sienna:
Horn – Horn System – “Horn: Horn System: Problem Symptoms Table”

24. Perform Techstream Health Check, assure no DTCs are present. Refer to TIS, applicable
model and model year Repair Manual:


2014 / 2015 Sienna:
Supplemental Restraint Systems – Airbag System – “Supplemental Restraint Systems:
Airbag System: DTC Check”

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Cruise Control Stalk Illumination Intermittent Operation
Repair Procedure (Continued)

25. Inspect SRS warning light is not illuminated.
If warning light illuminates, refer to TIS, applicable model and model year Repair Manual
for diagnosis:


2014 / 2015 Sienna:
Supplemental Restraint Systems – Airbag System – “Supplemental Restraint Systems:
Airbag System: Diagnosis System”

© 2016 Toyota Motor Sales, USA