Replacement Requirements

In the following cases, replace the center airbag sensor assembly.

NOTICE: For replacement of the center airbag sensor assembly, see page AB-19, "REMOVAL AND INSTALLATION".

• If the center airbag sensor assembly has been found to be faulty in troubleshooting.

• If the center airbag sensor assembly has been found to be faulty during the check in item 2. -(b).

• If the center airbag sensor assembly has been dropped.

1991 Mr2 Srs Ecu

Wire Harness and Connector

HINT: The airbag system wire harness is integrated with the cowl wire harness assembly and luggage compartment wire harness assembly. The wires for the airbag wire harness are encased in a yellow corrugated _ tube and all the connectors in the system are a standard yellow color.

Airbag Warning Light

Airbag Warning Light

Auris Service Airbag Replacement

ab0281

INSPECTION ITEMS

1. VEHICLES NOT INVOLVED IN A COLLISION

• Perform a diagnostic system check (See page AB-29).

2. VEHICLES INVOLVED IN A COLLISION

(a) Perform a diagnostic system check (See page AB-29).

(b) If there is a break in any of the wires in the airbag system wire harness, or if conductors are exposed.

(c) If the airbag system wire harness connectors are cracked or chipped.

REPLACEMENT REQUIREMENTS

In the following cases, replace the wire harness or connector.

• If any part of the airbag system wire harness or any connector has been found to be faulty in troubleshooting.

• If any part of the airbag system wire harness or any connector has been found to be faulty during the check in item 2. - (b) or (c).

NOTICE: If the wire harness used in the airbag system is damaged, replace the whole wire harness assembly.

When the connector to the front airbag sensors can be repaired alone (when there is no damage to the wire harness), use the repair wire specially designed for the purpose (See page AB-21).

REMOVAL AND INSTALLATION OF COMPONENT PARTS

Steering Wheel Pad and Spiral Cable

Remove and install the parts as shown.

Upper Column Cover

Torx Screw

Column Cover

Upper Column Cover

Torx Screw

Column Cover

Combination Switch (w/Spiral Cable)

Lower

What Are The Mices Life Cycle

No. 3 Cover

Steering Wheel Pad

Instrument Panel Lower Insert

Instrument Panel No. 1 Lower Finish Panel

Combination Switch (w/Spiral Cable)

Lower

Air Duct

No. 3 Cover

Steering Wheel Pad

Instrument Panel Lower Insert

Instrument Panel No. 1 Lower Finish Panel kg-cm (ft-lb, N m) : Specified torque

(MAIN POINTS OF REMOVAL AND INSTALLATION)

CAUTION: Work must be started after approx. 20 seconds or longer from the time the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the battery (See page AB-2).

NOTICE:

• If the wiring connector of the airbag system is disconnected with the ignition switch at ON or ACC, diagnostic codes will be recorded.

• Never use airbag parts from another vehicle. When replacing parts, replace with new parts.

1. REMOVE STEERING WHEEL PAD

(a) Remove negative terminal (-) from the battery.

(b) Place the front wheels facing straight ahead.

(c) Using a torx wrench, loosen the four screws.

Torx wrench: T30 (Part No. 09042-00010 or locally manufactured tool)

(d) Loosen the torx screws until the groove along the screw circumference catches on the screw case.

Jugend Reinning Patern

(e) Pull the wheel pad out from the steering wheel and disconnect the airbag connector.

NOTICE: When removing the wheel pad, take care not to pull the airbag wire harness.

CAUTION:

• When storing the wheel pad, keep the upper surface of the pad facing upward (See pages AB-3, 4).

• Never disassemble the wheel pad.

2. REMOVE STEERING WHEEL

(a) Disconnect the connector.

(c) Place matchmarks on the steering wheel and main shaft.

(d) Using SST, remove the steering wheel. SST 09213-31021

3. REMOVE AND INSTALL SPIRAL CABLE FROM/TO COMBINATION SWITCH

NOTICE: Do not disassemble the spiral cable or apply oil to it.

4. CENTER SPIRAL CABLE

(a) Check that the front wheels are facing straight ahead.

(b) Turn the spiral cable counterclockwise by hand until it becomes harder to turn the cable.

(c) Then rotate the spiral cable clockwise about 2 1/2 turns to align the red mark.

HINT: The spiral cable will rotate about 2 1 /2 turns to either left or right of the center.

5. INSTALL STEERING WHEEL

(a) Align matchmarks on the steering wheel and main shaft, and install the steering wheel to the main shaft.

(b) Install and torque the set nut. Torque: 360 kg-cm (26 ft-lb, 35 N-m)

(c) Connect the connector.

6. INSTALL STEERING WHEEL PAD

(a) Connect the airbag connector.

(b) Install the wheel pad after confirming that the circumference groove of the torx screws is caught on the screw case.

(c) Using a torx wrench, tighten the four screws. Torque: 75 kg-cm (65 in.-lb, 7.4 N-m) NOTICE:

• Make sure the wheel pad is installed to the specified torque.

• If the wheel pad has been dropped, or there are cracks, dents or other defects in the case or connector, replace the wheel pad with a new one.

• When installing the wheel pad, take care that the wirings do not interfere with other parts and are not pinched between other parts.

7. CHECK STEERING WHEEL CENTER POINT

Front Airbag Sensor

Remove and install the parts as shown.

Headlight Door

Hood Lock Protector Rear Plate

Hood Lock Protector Rear Plate

Front Airbag Sensor Mr2 Mk2

Front Airbag Sensor RH

Front Airbag Sensor LH

Front Airbag Sensor RH

Front Airbag Sensor LH

♦ Non-reusable part

(MAIN POINTS OF REMOVAL AND INSTALLATION)

CAUTION: Work must be started after approx. 20 seconds or longer from the time the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the battery (See page AB-2).

NOTICE:

• If the wiring connector of the airbag system is disconnected with the ignition switch at ON or ACC, diagnostic codes will be recorded.

• Never use airbag parts from another vehicle. When replacing parts, replace with new parts.

• Never reuse the sensor involved in a collision when the airbag has deployed.

• Never repair a sensor in order to reuse it.

Mr2 Sw20 Diagnostic Port 5sfe Codes

INSTALL FRONT AIRBAG SENSOR

Install the sensor with the arrow on the sensor facing toward the front of the vehicle.

NOTICE:

• Make sure the sensor is installed to the specified torque.

• If the sensor has been dropped, or there are cracks, dents or other defects in the case, bracket or connector, replace the sensor with a new one.

• The sensor set bolts and nuts have been anti-rust treated.

When the sensor is removed, always replace the set bolt and nut with new ones.

• After installation, shake the sensor to check that there is no looseness.

• The front sensor is equipped with an electrical connection check mechanism. Be sure to lock this mechanism securely when connecting the connector. If the connector is not securely locked, a malfunction code will be detected by the diagnosis system.

• Check that the dimensions of the body where the front airbag sensor is installed match those in the body dimension drawings on page BO-78.

(The airbag may malfunction, or may not work, if the mounting angle or dimensions of the sensor mount are not correct.)

Center Airbag Sensor Assembly

Remove and install the parts as shown.

(MAIN POINTS OF REMOVAL AND INSTALLATION)

CAUTION: Work must be started after approx. 20 seconds or longer from the time the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the battery (See page AB-2).

NOTICE:

• Do not open the cover or the case of the ECU and various computers unless absolutely necessary. (If the IC terminals are touched, the IC may be destroyed by static electricity.)

• Never use airbag parts from another vehicle. When replacing parts, replace with new parts.

• Never repair a sensor in order to reuse it.

REMOVE AND INSTALL CENTER AIRBAG SENSOR ASSEMBLY

(a) Disconnect and connect the connectors.

NOTICE: Removal and installation of the connectors is done with the sensor assembly installed.

(b) Using a torx wrench, loosen and tighten the four screws.

Torx wrench: T40 (Part No. 09042-00020 or locally manufactured tool)

NOTICE:

• Make sure the sensor assembly is installed to the specified torque.

• If the sensor assembly has been dropped, or there are cracks, dents or other defects in the case, bracket or connector, replace the sensor assembly with a new one.

• When installing the sensor assembly, take care that the airbag wirings do not interfere with other parts and are not pinched between other parts.

• After installation, shake the sensor assembly to check that there is no looseness.

Good Example

Two Stripped Wires Pressure-Contact

Duplex Receptacle Dimensions

Good Example

Two Stripped Wires Pressure-Contact

Bad Example

Wire in Short Position

Wire Bend

Wire in Short Position

Wire Bend h6196 h6198

Was this article helpful?

0 0
Simple Car Care Tips and Advice

Simple Car Care Tips and Advice

Put an End to All Your Car Troubles. Does Your Car Break Down Often? Are You Spending More On Fuel Than You Thought You Would? Is Maintaining Your Car Eating Into Your Budget? Make Your Car Last Longer with Some Simple Do It Yourself Tips.

Get My Free Ebook


Post a comment