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Home >> Mercury >> 1996 >> Villager LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes 3.0L >> Self-Diagnostics >> Clearing Codes >> Without Scan Tool

Without Scan Tool

  1. Step 1) DTCs can be erased from memory by switching PCM from diagnostic Mode 2, back to diagnostic Mode 1. To switch from Mode 1 (normal operating mode) to Mode 2, go to next step.
  2. Step 2) Turn ignition off for at least 3 seconds. Turn ignition back on. Disconnect self-test harness connector. See Figure. Using a jumper wire, connect terminals No. 3 and 6 together. After 2 seconds or longer, disconnect jumper wire and reconnect self-test harness connector. This switches MIL operation to Mode 2 (flash code retrieval mode).
  3. Step 3) To switch back to Mode 1 (and clear codes), repeat step 2). All DTCs should be erased from memory. Turn ignition off.
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