DTC P0748:00 [FW6A-EL]
id050225904300
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DTC P0748:00 |
Pressure control solenoid circuit malfunction |
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DETECTION CONDITION
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• Under the following conditions, the TCM detects the pressure control solenoid circuit malfunction:
Diagnostic support note
• The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle.
• The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle.
• PENDING CODE is available.
• FREEZE FRAME DATA is available.
• The DTC is stored in the TCM memory.
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FAIL-SAFE FUNCTION
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• Set to emergency mode.
• Inhibits learning control.
• Inhibits manual mode.
• Inhibits neutral idle control.
• Inhibits i-stop control.
• Inhibits AAS.
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POSSIBLE CAUSE
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• Short or open circuit in pressure control solenoid circuit
• Pressure control solenoid malfunction
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SYSTEM WIRING DIAGRAM
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY FREEZE FRAME DATA/SNAPSHOT DATA HAS BEEN RECORDED
• Has the freeze frame data/snapshot data been recorded on the repair order?
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Yes
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Go to the next step.
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No
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Record the freeze frame data/snapshot data on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, replace the control valve body.
Go to the next step.
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No
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Replace the control valve body, then go to the next step.
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3
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VERIFY DTC TROUBLESHOOTING COMPLETED
• Clear the DTC using the M-MDS.
• Perform the following procedure to ensure that the DTC has been resolved:
• Perform the DTC inspection using the M-MDS.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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