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.
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HOMESERVICE MANUALSVOLVO1992740 L4-2320CC 2.3L DOHC B234F (CAN)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETESTING AND INSPECTIONOHMS MEASUREMENTSREGINA
1992 Volvo 740 L4-2320cc 2.3L DOHC B234F (Can)
Regina
1992 Volvo 740 L4-2320cc 2.3L DOHC B234F (Can)SECTION Regina
25 Position ECU Plug:
For terminal ID refer to "Computers and Control Systems : Engine Control Module : Diagrams". Connector Views
CAUTION: WHEN MEASURING OHMS DISCONNECT THE ECU FROM THE HARNESS PLUG AND NEVER TURN THE IGNITION KEY ON. IT IS P05SIBLE THAT FAILURE TO FOLLOW THESE STEPS WILL RESULT IN DAMAGE TO THE ECU.
Grounds
Coolant Temperature Sensor
Air Temperature Sensor
Throttle Switch
Fuel Pump Relay
Main Relay
ISC Valve
Injector Group(s)
Single Injector
Cold Start Injector
RENDER: 1.0x
NO RELATED
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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.