Check for continuity between the ELD 3P connector terminal No. 2 and body ground. ELD 3P CONNECTOR Wire side of female terminals Is there continuity? YES - Go to step 13. NO - Repair open in the wire between ELD and G301. Reconnect the ELD 3P connector and ECM connector E (31P). Start the engine and let it idle. While measuring voltage between ECM connector terminals A24 and E15, turn the headlights on (high). ECM CONNECTORS Wire side of female terminals Does the voltage drop? YES - Substitute a known-good ECM and recheck (see page 11-5). If symptom/indication goes away, replace the original ECM. NO - Replace the ELD.

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