Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Mazda B4000 BaseFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS
| Component | Component Location |
|---|---|
| Air Bag Module | Behind right side of dash. |
| Anti-Slosh Module | Integral with instrument cluster. |
| Central Timer Module (CTM) | Behind right side of dash. |
| Daytime Running Lamps (DRL) Module (2.3L) | Left side of lower radiator support. See Figure . |
| Daytime Running Lamps (DRL) Module (4.0L) | Left side of lower radiator support. See Figure . |
| Electric Shift Control Module | Behind center of dash. |
| Generic Electronic Module (GEM) | Behind center of dash. |
| One Touch Down Module | In relay box No. 1. |
| Powertrain Control Module (PCM) (2.3L) | Right rear of engine compartment, through firewall. See Figure . |
| Powertrain Control Module (PCM) (4.0L) | Right rear of engine compartment, through firewall. See Figure . |
| Pulse Width Dimming Module | Behind left side of dash. |
| Rear Anti-Lock Brake System (RABS) Module | Behind lower center of dash, left side of ashtray assembly. |
| Remote Anti-Theft Personality (RAP) Module | In left rear corner of cab. |
| 4 Wheel Anti-Lock Brake (4WABS) Hydraulic Unit (2.3L) | In left front of engine compartment. See Figure . |
| 4 Wheel Anti-Lock Brake (4WABS) Hydraulic Unit (4.0L) | In left front of engine compartment. See Figure . |
| 4 Wheel Anti-Lock Brake (4WABS) Module | In left front of engine compartment. |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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