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PGM-FI Main Relay Circuit Testing: 3.5RL

  1. Remove PGM-FI main relay located under left side of instrument panel. Connect battery voltage to relayconnector "B" terminal No. 3 (Blue/Red wire). Connect connector "B" terminal No. 2 (Yellow/Green wire) to ground. See Figure .
  2. Test for continuity between relay connector "B" terminal No. 5 (Red/White wire) and connector "A" terminal No. 2 (Yellow wire). See appropriate wiring diagram under ENGINE PERFORMANCE in WIRING DIAGRAMS. If continuity exists, go to next step. If continuity does not exist, replace relay.
  3. Connect battery voltage to relay connector "A" terminal No. 4 (Black/Yellow wire). Connect connector "B" terminal No. 7 (Black wire) to ground. Test for continuity between relay connector "A" terminals No. 1 and 3 (both Yellow/Black wires). If continuity exists, go to next step. If continuity does not exist, replace relay and retest.
  4. Connect battery voltage to relay connector "A" terminal No. 1 (Yellow/Black wire). Connect connector "B" terminal No. 2 (Yellow/Green wire) to ground. Test for continuity between relay connector "B" terminal No. 5 (Red/White wire) and connector "A" terminal No. 2 (Yellow wire). If continuity exists, relay is okay. If continuity does not exist, replace relay.
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