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Inspection Procedure

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  1. Disconnect the transmission control switch connector. Check for continuity between terminals No. 3 and 6 of transmission control switch. See Figure and Figure . If continuity is as specified, go to next step. If not, replace transmission control switch.
  2. Connect the transmission control switch connector. Check for continuity between terminals ODMS and E1 of ECM. See Figure. If continuity is as specified, replace ECM. See appropriate REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE. If not, repair or replace wiring harness and connector.