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.
DTC Confirmation Test
Malfunction is detected when improper voltage is sent to ECM from EVAP-CSPS. Possible causes are:
- EVAP-CSPS circuit open or shorted.
- EVAP-CSPS hose plugged or leaking.
- Defective EVAP-CSPS.
- Defective EVAP-CVCV.
- Defective EVAP-CPVCV.
- Defective EVAP canister.
- Hose between EVAP canister and water separator plugged or leaking.
To set DTC, start engine and warm to normal operating temperature. Measure voltage between ground and ECM terminal No. 92 (fuel tank temperature sensor signal) by backprobing. See Figure and Figure . Ensure voltage is less than 4.2 volts. Turn ignition off and wait at least 10 seconds. Start engine and wait at least 20 seconds. Select MODE 7 with scan tool. If first trip DTC is detected, go to PROCEDURE .
Use the Manual With the Right Hardware
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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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