Technician Safety Information
SRS Precautions and Procedures
General Precautions
NOTE: Some systems store data in memory that is lost when the battery is disconnected. Before disconnecting the battery, refer to Battery Terminal Disconnection and Reconnection. Procedures
Please read the following precautions carefully before servicing the airbag system. Observe the instructions described in this data, or the airbags could accidentally deploy and cause damage or injuries.
- Except when doing electrical inspections, always turn the ignition switch to LOCK (0), do the battery terminal disconnection procedure, Procedures then wait at least 3 minutes before starting work.
NOTE: The SRS memory is not erased even if the ignition switch is turned to LOCK (0) or the battery cables are disconnected from the battery.
- Use replacement parts which are manufactured to the same standards and quality as the original parts. Do not install used SRS parts. Use only new parts when making SRS repairs.
- Carefully inspect any SRS part before you install it.
Do not install any part that shows signs of being dropped or improperly handled, such as dents, cracks or deformation.
- Before disconnecting the SRS unit connectors, always disconnect the appropriate SRS parts connectors.
- Use only a digital multimeter to check the system. If it is not a Honda multimeter, make sure its output is 10 mA (0.01 A) or less when switched to the lowest value in the ohmmeter range. A tester with a higher output could cause accidental deployment and possible injury.
- Do not put objects on the front passenger's airbag.
Steering-Related Precautions
Cable Reel Alignment
- Misalignment of the cable reel could cause an open in the wiring, making the SRS, remote steering wheel controls, or the horn inoperative. Center the cable reel whenever you do the following. Service and Repair
- Installation of the steering wheel
- Installation of the cable reel
- Installation of the steering column
- Other steering-related adjustment or installation
- Do not disassemble the cable reel.
- Do not apply grease to the cable reel.
- If the cable reel shows any signs of damage, replace it with a new one. For example, if the cable reel does not rotate smoothly, replace it.
Airbag Handling and Storage
Do not disassemble an airbag. It has no serviceable parts. Once an airbag has been deployed, it cannot be repaired or reused.
For temporary storage of an airbag during service, observe the following precautions.
- Store the removed airbag with the pad surface up. Never put anything on the airbag.
- To prevent damage to the airbag, keep it away from any oil, grease, detergent, or water.
- Store the removed airbag on a secure, flat surface away from any high heat source (exceeding 200 °F/93 °C).
- Never do electrical tests on the airbags, such as measuring resistance.
- Do not position yourself in front of the airbag during removal, inspection, or replacement.
- For proper disposal of a damaged airbag, refer to airbag disposal. Procedures
- The side curtain airbag module assembly is a long, jointed part containing an inflator (A), a flexible bag (B), and brackets (C). When removing or installing the side curtain airbag inflator assembly, never:
- Drop the airbag assembly.
- Cut, tear, or unwrap the tape strips.
- Handle the flexible bag (B).
- Excessively bend or unfold the airbag.
SRS Unit, Front and Side Impact Sensors, Driver's Seat Position Sensor, and Front Passenger's Weight Sensors
- Turn the ignition switch to LOCK (0), do the battery terminal disconnection procedure, Procedures then wait at least 3 minutes before beginning installation or replacement of the SRS unit or disconnecting the connectors from the SRS unit.
- Be careful not to bump or impact the SRS unit, the front impact sensors, or the side impact sensors when the ignition switch is in ON (II), or for at least 3 minutes after the ignition switch is turned to LOCK (0).
- During installation or replacement, be careful not to bump (by impact wrench, hammer, etc.) the area around the SRS unit, the front impact sensors, or the side impact sensors. The airbags could accidentally deploy and cause damage or injury.
- After a collision where the front airbag, the side airbag, the side curtain airbags, or the seat belt tensioner deployed, go to Component Replacement/Inspection After Deployment. Service and Repair After a collision where airbags did not deploy, inspect for any damage or any deformation on the SRS unit, the front impact sensors, and the side impact sensors. Replace all damaged parts.
- Do not disassemble the SRS unit, the front impact sensors, the side impact sensors, the driver's seat position sensor, and front passenger's seat weight sensors.
- Always install the SRS unit and all impact sensors with new TORX bolts torqued to 9.8 N-m (1.0 kgf-m, 7.2 lbf-ft).
- Do not spill water or oil on the SRS unit or any of the sensors.
Wiring Precautions
Some of the SRS wiring can be identified by a special yellow outer covering, and the SRS connectors can be identified by their yellow color. Observe these instructions.
- Never attempt to modify, splice, or repair SRS wiring.
If there is an open or damage to the SRS wiring, replace the harness.
- Be sure to install the harness wires so they do not get pinched or interfere with other parts.
- Make sure all SRS ground locations are clean, and the grounds are securely fastened for optimum metal-to-metal contact. Poor grounds can cause intermittent problems that are difficult to diagnose.
- Do not use any silicone based cleaners or lubricants on any SRS connectors or terminals.
Precautions for Electrical Inspections
Special Tools Required
- Back Probe Adapter, 17 mm 07TAZ-001020A
- Make sure the battery is fully charged when doing electrical tests. If the battery is not fully charged, the results of the tests may not be accurate.
- When using electrical test equipment, insert the probe of the tester into the wire side of the connector (except waterproof connectors). Do not insert the probe of the tester into the terminal side of the connector, and do not tamper with the connector.
- Use back probe adapter 07TAZ-001020A. Do not insert the probe forcibly.
- Use specified service connectors in troubleshooting.
Using improper tools could cause a diagnostic error due to poor metal-to-metal contact.
SRS Unit Connectors
When diagnosing or troubleshooting at an SRS unit connector (A), use the terminal test port (B) below the terminal (C) you need to check. Gently insert the pin probes of the tester or jumper wire at the terminal test port from the terminal side.
NOTE:
- Do not insert the pin probes of the tester or jumper wire at the terminal port and SRS short canceller terminal port (D).
- To prevent damage to the connector terminals, do not insert the test equipment probes, paper clips, or other substitutes as they can damage the terminals.Damaged terminals cause a poor connection and an incorrect measurement.
Water Proof Connectors for SRS System
When diagnosis/troubleshooting is done at the water proof connector (A), use the terminal test port (B) above the terminal (C) you need to check. Gently contact the pin probe of the tester or jumper wire at the terminal test port from the terminal side.
NOTE:
- Do not insert the pin probe of the tester or a jumper wire into terminal port.
- To prevent damage to the connector terminals, do not insert the test equipment probes, paper clips, or other substitutes as they can damage the terminals.Damaged terminals cause a poor connection and an incorrect measurement.
Lever-Locked Connector
The SRS unit connectors have a lever lock.
SRS Unit Connectors
Disconnecting
To release the lock, pull the lever (A) while pushing down the lock (B), then pull out the connector (C).
Connecting
To reconnect the connector, push in on the connector sleeve (A). As the connector is pressed in, the lever (B) moves to the locked position. Push the lever in until it clicks.
Spring-Loaded Lock Connector
Some SRS connectors have a spring-loaded lock.
Front Airbag and Seat Belt Tensioner Connectors
Disconnecting
To release the lock, pull the spring-loaded sleeve (A) toward the stop (B) while holding the opposite half of the connector. Then pull the connector halves apart. Be sure to pull on the sleeve and not on the connector.
Connecting
To reconnect, hold the pawl-side connector, and press on the back of the sleeve-side connector in the direction shown. As the two connector halves are pressed together, the sleeve is pushed back by the pawl (A). Do not touch the sleeve.
Side Airbag and Side Curtain Airbag Connectors
Disconnecting
To release the lock, pull the spring-loaded sleeve (A) toward the stop (B) while holding the opposite half of the connector. Then pull the connector halves apart. Be sure to pull on the sleeve and not on the connector half.
Connecting
Hold both connector halves, and press them firmly together until the projection (A) of the sleeve-side connector clicks.
Opening the SRS Unit Shorting Connectors for Diagnosis
Special Tools Required
- SRS short canceller 070AZ-SAA0100
NOTE:
- To prevent damage to the connector cavity, insert a short canceller straight into the cavity from the terminal side.
- Before installing a short canceller, wash it with electrical contact cleaner, then dry it with compressed air.
- Do not use a short canceller if it is damaged.
- Make sure to remove the short canceller before reconnecting the SRS unit connector.
- Some systems store data in memory that is lost when the battery is disconnected. Before disconnecting the battery, refer to Battery Terminal Disconnection and Reconnection. Procedures
When SRS unit connectors A (39P) and B (39P) are disconnected, a short circuit is automatically created in the connector to prevent an airbag or tensioner from deploying. The circuit may need to be opened when diagnosing the system. Insert a short canceller (070AZ-SAA0100) in the specified cavities when necessary to keep the circuit open for diagnosis.
Terminal numbers are shown from the wire side of the female terminals. Insert the short canceller(s) into the cavities on the terminal side of the connector.
Seats With Side Airbags
Seats with side airbags have a "SIDE AIRBAG" label on the seat-back.
- Clean the seats with a damp cloth. Do not soak the seats with liquid. Do not spray steam on the seats.
- Do not repair a torn or frayed seat-back cover. Replace the seat-back cover if it is damaged.
- After a collision where the side airbag was deployed, replace the side airbag and the seat frame with new parts. If the seat-back cushion is split, it must be replaced.
- Never put aftermarket accessories on the seat (covers, pads, seat heaters, lights, etc.).
1. Turn the ignition switch to LOCK (0). Disconnect the negative cable from the battery, then wait at least 3 minutes before starting work.
Driver's Airbag
2. Remove the access panel (A) from the steering wheel, then disconnect the driver's airbag 4P connector (B) from the cable reel (see Spring-Loaded Lock Connector).
Front Passenger's Airbag
3. Remove the lower glove box. Glove Box Removal/Installation
4. Disconnect the front passenger's airbag 4P connector (A) from the dashboard wire harness (see Spring-Loaded Lock Connector).
Side Airbag
5. Disconnect both driver's and front passenger's side airbag 2P connectors (A) from the floor wire harness (see Spring-Loaded Lock Connector).
Side Curtain Airbag
6. Remove the quarter pillar trim. Interior Trim Removal/Installation - Quarter Pillar Trim
7. Disconnect both floor wire harness 2P connectors (A) from the side curtain airbags (see Spring-Loaded Lock Connector).
Seat Belt Tensioner
8. Remove the B-pillar lower trim. Interior Trim Removal/Installation - B-Pillar Upper/Lower Trim
9. Disconnect both floor wire harness 4P connectors (A) from the seat belt tensioners (see Spring-Loaded Lock Connector).
SRS Unit
10. Remove the center lower cover Dashboard Center Lower Cover Removal/Installation and the heater joint duct. Dashboard/Steering Hanger Beam Removal/Installation
11. Disconnect SRS unit connector A (39P) and B (39P) from the SRS unit (see Lever-Locked Connector).
