Toyota Sienna Service Manual: On-vehicle inspection

Toyota Sienna Service Manual / Supplemental restraint system / Steering pad / On-vehicle inspection

1. INSPECT STEERING PAD (VEHICLE NOT INVOLVED IN COLLISION)

INSPECT STEERING PAD (VEHICLE NOT INVOLVED IN COLLISION)

Perform a diagnostic system check.
With the steering pad installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the steering pad with a new one: Cuts, minute cracks or marked discoloration on the steering pad top surface or in the grooved portion.

2. INSPECT STEERING PAD (VEHICLE INVOLVED IN COLLISION AND AIRBAG HAS NOT DEPLOYED)

INSPECT STEERING PAD (VEHICLE INVOLVED IN COLLISION AND AIRBAG HAS NOT DEPLOYED)

Perform a diagnostic system check.
With the steering pad removed from the vehicle, perform a visual check. If there are any defects as mentioned below, replace the steering pad or steering wheel assembly with a new one:

Cuts, minute cracks or marked discoloration on the steering pad top surface or in the grooved portion.
Cracks or other damage to the connectors.
Deformation of the steering wheel assembly.
Deformation of the horn button contact plate of the steering pad.
There should be no interference between the steering pad and steering wheel assembly, and the clearance should be uniform all the way around when the new steering pad is installed on the steering wheel assembly.

CAUTION: Be sure to follow the correct removal and installation procedures.

Removal

1. PRECAUTION CAUTION: Be sure to read "PRECAUTION" thoroughly before servicing. 2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 seconds after disconnecting th ...

Other materials:

Checking tires
Check if the treadwear indicators are showing on the tires. Also check the tires for uneven wear, such as excessive wear on one side of the tread. Check the spare tire condition and pressure if not rotated. New tread Worn tread Treadwear indicator The location of treadwear indicator ...

Removal
1. REMOVE FRONT WHEEL 2. REMOVE FRONT AXLE HUB LH NUT HINT: (See page AH-4) SST 09930-00010 3. SEPARATE SPEED SENSOR FRONT LH HINT: (See page AH-4) 4. SEPARATE FRONT DISC BRAKE CALIPER ASSEMBLY LH HINT: (See page AH-4) 5. REMOVE FRONT DISC 6. SEPARATE TIE ROD ASSEMBLY LH HINT: (See pa ...

Diagnosis system
1. CHECK DLC3 The vehicle uses ISO 15765-4 communication protocol. The terminal arrangement of the DLC3 complies with SAE 1962 and matched the ISO 15765-4 format. If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connecto ...