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.
Checking Activation
-- Switch the ignition ON.
-- Using a Multimeter, Check the Fuel Pump Relay 2 -J49- electrical harness connector terminals 1 and 2 for voltage.
Specified value: Battery Voltage
-- Switch the ignition Off.
If the specified value was obtained:
-- Replace the Fuel Pump Relay 2 -J49- and retest for operation.
If the specified value was Not obtained:
-- Remove the Engine Control Module (ECM) - J623-.
-- Using a Multimeter, Check the Fuel Pump Relay 2 -J49- electrical harness connector to the Engine Control Module (ECM) - J623- electrical harness connector T60 for an open circuit.
| Fuel Pump Relay 2 -J49- electrical harness connector terminals | Engine Control Module (ECM) - J623- electrical harness connector T60 terminals. |
|---|---|
| 2 | 15 |
Specified value: 1.5 Ω Max.
If the specified value was Not obtained:
-- Check the wiring connection for an open circuit, short circuit to Battery positive or Ground
-- Check the wiring connection for damage, corrosion, loose or broken terminals.
-- If necessary, repair the faulty wiring connection.
-- Go to Final procedures
If the specified value was obtained:
-- Replace the Engine Control Module -J623-.
Final procedures
-- Make sure In-Line fuel pump relay has been reinstalled properly and all connectors have been plugged back in.
-- Reinstall the engine cover with air filter, if necessary.
-- After the repair work, the following work steps must be performed in the following sequence:
- Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
- If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
- If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .
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.