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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 WIRING DIAGRAMS article. 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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