Measure voltage between the ELD 3P connector terminals No. 1 and No. 2. ELD 3P CONNECTOR Wire side of female terminals Is there battery voltage? YES - Go to step 12. NO - Go to step 13. Measure voltage between ELD 3P connector terminal No. 3 and body ground. ELD 3P CONNECTOR Wire side of female terminals Is there about 5 V? YES - Replace the under-hood fuse/relay box. NO - Check for an open or short in the wire between the ECM/PCM (E15) and the ELD. If the wire is OK, substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original ECM/PCM.

Measure voltage between the ELD 3P connector terminal No. 1 and body ground. ELD 3P CONNECTOR Wire side of female terminals Is there battery voltage? YES - Repair open in the wire between the ELD and G201. NO - Check the No. 4 ACG (10A) fuse in the under-dash fuse/relay box. If the fuse is OK, repair open in the wire between No. 4 ACG (10A) fuse in the ELD.