Test No. 2 (Communication With One-Shot Pulse Input Signal Not Possible)
- Using an ohmmeter, verify continuity between DLC connector B-38, pin No. 9 (Black/Blue wire) (Fig. Figure ) and junction block connector B-51, pin No.17 (Black/Blue wire) (Fig. Figure ). If no continuity exists, repair open Black/Blue wire. If continuity exists, go to next step.
- Check for continuity between junction block connector B-51, pin No. 17 (Black/Blue wire) (Fig. Figure ) and ECU connector B-47, pin No. 14 (Black/Blue wire) (Fig. Figure ). If continuity does not exist, repair open Black/Blue wire. If continuity exists, go to next step.
- Check for continuity between DLC connector B-38, pin No. 4 (Black wire) (Fig. Figure ) and junction block connector B-49, pin No. 1 (Black Wire) (Fig. Figure ). If continuity does not exist, repair open in Black wire. If continuity exists, go to next step.
- Using scan tool, attempt to establish communication with one-shot pulse input signal. If communication attempt fails, replace faulty ECU.