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[C-137 A/T-ECU connector (vehicle side, connected)]
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Check that the voltage between C-137 terminal No. 49 and C-35 terminal No. 13 or C-35 terminal No. 26 is 0 V, and then check the frequency of C-137 terminal No. 38.
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- At D range, and the engine speed is 700 r/min: Approx. 353 Hz
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Q.
Is the check result normal?
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[B-131 input shaft speed sensor connector (vehicle side, disconnected)]
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- With the ignition switch ON: Terminal No. 3 to terminal No. 1 → System voltage
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Q.
Is the check result normal?
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Check for continuity between B-131 input shaft speed sensor connector terminals and C-137 A/T-ECU terminals.
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- Between B-131 terminal No. 2 and C-137 terminal No. 38: Continuity exists.
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When the continuity check result is OK, check that the wiring harness is not shorted to the body and other wiring harness.
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Q.
Is the check result normal?
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Replace the input shaft speed sensor with the one of the same transmission of the same model. Then go to Step 5 .
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Repair or replace the failure section, and then go to Step 8 .
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- Check the wiring harness for an open/short circuit between the ignition switch and B-131 input shaft speed sensor connector terminal No. 3.
- Check for a blown fuse.
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Q.
Is the check result normal?
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Repair or replace the failure section.
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Q.
Is the check result normal?
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Replace the input shaft speed sensor.
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Check for continuity between B-131 input shaft speed sensor terminals and C-137 A/T-ECU terminals.
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- Between B-131 terminal No. 1 and C-137 terminal No. 49: Continuity exists.
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When the continuity check result is OK, check that the wiring harness is not shorted to the body and other wiring harness.
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Q.
Is the check result normal?
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Repair or replace the failure section.
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Q.
Is there a failure point?
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Repair or replace the failure section.
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Check that the normal code is displayed.
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Q.
Is the check result normal?
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The procedure is complete.
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