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Q.
Is the diagnosis code other than the pressure switch set? (Is the code other than P0841, P0846, P0871, P0876, and P0988 set?)
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Check and repair the relevant diagnosis code system.
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[C-137 A/T-ECU connector (vehicle side, connected)]
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Measure the voltage between C-137 terminal No. 43 and body earth.
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- Low-reverse brake engaged: 0 V
- Other than above: System voltage
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Q.
Is the check result normal?
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Check for continuity between C-137 A/T-ECU connector and B-131 A/T control solenoid valve assembly connector.
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- Between C-137 terminal No. 43 and B-131 terminal No. 7: 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 the check result normal?
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Repair or replace the failure section.
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Check for continuity between the B-131 A/T control solenoid valve assembly connector terminals and the low-reverse brake pressure switch connector terminals.
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- Between B-131 terminal No. 7 and low-reverse brake pressure switch: 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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Check for continuity between the low-reverse brake pressure switch body and earth.
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- Between the low-reverse brake pressure switch body and body earth: Continuity exists.
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Q.
Is the check result normal?
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Replace the valve body assembly, and then go to Step 8.
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Repair or replace the failure section.
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Q.
Is the check result normal?
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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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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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