Mazda Trucks 1994-1998 Repair Guide

General Information

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See Figure 1

The 1995-98 B Series Pick-up and all MPV vehicles are available with an air bag Supplemental Restraint System (SRS). The SRS is designed to work in conjunction with the standard three-point safety belts to reduce injury in a head-on collision.


WARNING
The SRS can actually cause physical injury or death if the safety belts are not used, or if the manufacturer's warnings are not followed. The manufacturer's warnings can be found in your owner's manual, or, in some cases, on your sun visors.

The SRS is comprised of the following components:



Driver's side air bag module
 
Passenger's side air bag module
 
Right-hand and left-hand primary crash front air bag sensors
 
Air bag diagnostic monitor computer
 
Electrical wiring
 



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the SRS air bag module and related components

The SRS primary crash front air bag sensors are hard-wired to the air bag modules and determine when the air bags are deployed. During a frontal collision, the sensors quickly inflate the two air bags to reduce injury by cushioning the driver and front passenger from striking the dashboard, windshield, steering wheel and any other hard surfaces. The air bag inflates so quickly (in a fraction of a second) that in most cases it is fully inflated before you actually start to move during an automotive collision.

Since the SRS is a complicated and essentially important system, its components are constantly being tested by a diagnostic monitor computer, which illuminates the air bag indicator light on the instrument cluster for approximately 6 seconds when the ignition switch is turned to the RUN position when the SRS is functioning properly. After being illuminated for the 6 seconds, the indicator light should then turn off.

If the air bag light does not illuminate at all, stays on continuously, or flashes at any time, a problem has been detected by the diagnostic monitor computer.


WARNING
If at any time the air bag light indicates that the computer has noted a problem, have your vehicle's SRS serviced immediately by a qualified automotive technician. A faulty SRS can cause severe physical injury or death.

SERVICE PRECAUTIONS



Whenever working around, or on, the air bag supplemental restraint system, ALWAYS adhere to the following warnings and cautions.



Always wear safety glasses when servicing an air bag vehicle and when handling an air bag module.
 
Carry a live air bag module with the bag and trim cover facing away from your body, so that an accidental deployment of the air bag will have a small chance of personal injury.
 
Place an air bag module on a table or other flat surface with the bag and trim cover pointing up.
 
Wear gloves, a dust mask and safety glasses whenever handling a deployed air bag module. The air bag surface may contain traces of sodium hydroxide, a by-product of the gas that inflates the air bag and which can cause skin irritation.
 
Ensure to wash your hands with mild soap and water after handling a deployed air bag.
 
All air bag modules with discolored or damaged cover trim must be replaced, not repainted.
 
All component replacement and wiring service must be made with the negative and positive battery cables disconnected from the battery for a minimum of one minute prior to attempting service or replacement.
 
NEVER probe the air bag electrical terminals. Doing so could result in air bag deployment, which can cause serious physical injury.
 
If the vehicle is involved in a fender-bender which results in a damaged front bumper or grille, have the air bag sensors inspected by a qualified automotive technician to ensure that they were not damaged.
 
If at any time, the air bag light indicates that the computer has noted a problem, have your vehicle's SRS serviced immediately by a qualified automotive technician. A faulty SRS can cause severe physical injury or death.
 

1995-98 B Series Pick-up models

Disarming The System
  1. Disconnect the negative battery cable from the battery.
  2.  
  3. Disconnect the positive battery cable from the battery.
  4.  
  5. Wait one minute. This time is required for the back-up power supply in the air bag diagnostic monitor to completely drain. The system is now disarmed.
  6.  

If you are disarming the system with the intent of testing the system, do not! The SRS is a sensitive, complex system and should only be tested or serviced by a qualified automotive technician. Also, specific tools are needed for SRS testing.

Arming The System
  1. Connect the positive battery cable.
  2.  
  3. Connect the negative battery cable.
  4.  
  5. Stand outside the vehicle and carefully turn the ignition to the RUN position. Be sure that no part of your body is in front of the air bag module on the steering wheel, to prevent injury in case of an accidental air bag deployment.
  6.  
  7. Ensure the air bag indicator light turns off after approximately 6 seconds. If the light does not illuminate at all, does not turn off, or starts to flash, have the system tested by a qualified automotive technician. If the light does turn off after 6 seconds and does not flash, the SRS is working properly.
  8.  

MPV MODELS



Disarming The System

See Figures 2 and 3

  1. Turn the ignition switch to the LOCK position.
  2.  
  3. Disconnect the negative battery cable from the battery.
  4.  
  5. Wait one minute. This time is required for the back-up power supply in the air bag diagnostic monitor to completely drain.
  6.  



Click image to see an enlarged view

Fig. Fig. 2: Disengage the orange and blue clock spring connector located behind the lower steering column cover



Click image to see an enlarged view

Fig. Fig. 3: Disengage the air bag module connector located behind the glove compartment cover

  1. If disarming the driver side air bag, remove the lower steering column cover, then disengage the orange and blue clock spring connector. If disarming the passenger side air bag (if equipped), remove the glove compartment cover and disengage the air bag module connector.
  2.  
  3. The air bag system is now disarmed.
  4.  

If you are disarming the system with the intent of testing the system, do not! The SRS is a sensitive, complex system and should only be tested or serviced by a qualified automotive technician. Also, specific tools are needed for SRS testing.

Arming The System

See Figure 4

  1. If equipped, plug in the passenger side air bag module connector, then install the glove compartment cover.
  2.  
  3. Plug in the orange and blue clock spring connector, then install the lower steering column cover.
  4.  
  5. Connect the negative battery cable.
  6.  
  7. Stand outside the vehicle and carefully turn the ignition to the ON position. Be sure that no part of your body is in front of the driver or passenger side air bag module, to prevent injury in case of an accidental air bag deployment.
  8.  



Click image to see an enlarged view

Fig. Fig. 4: Check to make sure that the air bag indicator light turns off after approximately 6 seconds

  1. Ensure the air bag indicator light turns off after approximately 6 seconds. If the light does not illuminate at all, does not turn off, or starts to flash, have the system tested by a qualified automotive technician. If the light does turn off after 6 seconds and does not flash, the SRS is working properly.
  2.  

 
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