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 MANUALSTOYOTA2000CAMRY LE, 3.0 F, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM SELF-DIAGNOSTICS - V6DIAGNOSTIC TESTSDTC P1600: ECM BATT CIRCUITDIAGNOSIS & REPAIR
2000 Toyota Camry LE, 3.0 F, Standard
Diagnosis & Repair
2000 Toyota Camry LE, 3.0 F, StandardSECTION Diagnosis & Repair
- Turn ignition off. Access ECM behind glove box. Using DVOM, backprobe ECM harness connector and measure voltage between ground and terminal No. 1 (Black/Yellow wire) at ECM harness connector E7. See Figure. If voltage is 9-14 volts, replace ECM. If voltage is not 9-14 volts, go to next step.
- Remove and inspect EFI fuse (15-amp). EFI fuse is located in engine compartment fuse box. If fuse is blown, check for short to ground in wiring. See WIRING DIAGRAMS article. Repair as necessary and replace fuse. If fuse is okay, check for open in wiring between EFI fuse and ECM. Repair as necessary.
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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.