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MR2 & Tercel

  1. Turn ignition off. Disconnect electrical connector from cruise control switch. Check for continuity between connector terminal No. 20 and body ground.
  2. If no continuity is present, check for open between terminal No. 20 and body ground. Check for faulty ground connection. If continuity is present, check if "SET/COAST" switch operation is normal. If switch is not operating normal, replace control switch.
  3. If switch operates normal, reconnect control switch connector. Disconnect computer connector, check connector. Check for continuity between terminal No. 5 and body ground with "SET/COAST" switch turned on.
  4. If no continuity is present, check for open or short between terminal No. 5 of computer and terminal No. 14 of control switch. If continuity is present, replace cruise control computer.
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