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 MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEMDIAGNOSTIC TESTSDTC C0265: PUMP MOTOR RELAY CIRCUIT OPENCIRCUIT DESCRIPTION
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Circuit Description
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Circuit Description
The relay supplies power to all 6 solenoid coils (3 isolation solenoid coils and 3 dump solenoid coils) when ABS is required. The relay and the 6 solenoid coils are located within the EBCM.
Conditions for setting DTC:
- EBCM microprocessor commands the relay on.
- Low voltage on all 8 solenoid driver circuits when all are expected to high (solenoid not energized).
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.