Automatic Transmission

DTC troubleshooting (cont'd)

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  1. Disconnect mainshaft speed sensor connector (2P).
  1. Check for continuity between PCM connector terminal C7 and the No. 2 terminal of the mainshaft speed sensor connector.

PCM CONNECTOR C (22P)

MAINSHAFT SPEED SENSOR CONNECTOR

Wire side of female terminals

Is there continuity?

YES - Go to step 10.

NO - Repair open in the wire between PCM connector terminal C7 and the mainshaft speed sensor.

  1. Check for continuity between PCM connector terminal C21 and the No. 1 terminal of the mainshaft speed sensor connector.

PCM CONNECTOR C (22P)

MAINSHAFT SPEED SENSOR CONNECTOR

Wire side of female terminals

Is there continuity?

YES - Check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.

NO - Repair open in the wire between PCM connector terminal C21 and the mainshaft speed sensor.