DTC U3003:16 [POSITION MEMORY CONTROL SYSTEM]

id0902z8969600

DTC U3003:16 | Battery voltage low
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DETECTION CONDITION | Voltage from battery power supply remains at 9 V or less for 5 s or more
POSSIBLE CAUSE | • Battery malfunction • Open or short circuit in wiring harness between position memory control module and battery • Open or short circuit in wiring harness between battery module and GND

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT BATTERY • Turn the ignition switch to OFF position. • Disconnect the negative battery cable. • Check the battery voltage. • Is there any malfunction? | Yes | Replace the battery. Go to the next step.
No | Go to the next step.
2 | INSPECT POSITON MEMORY CONTROL MODULE CONNECTOR CONDITION • Disconnect the position memory control module connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is there any malfunction? | Yes | Repair or replace the connector or terminals, then go to the next step.
No | Go to the next step.
3 | INSPECT POSITION MEMORY CONTROL MODULE CIRCUIT FOR OPEN CIRCUIT • Disconnect the positive battery cable. • Position memory control module connector is disconnected. • Inspect for continuity between the following terminals (wiring harness-side): ― Positive battery terminal—Position memory control module terminal 1F • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness for possible open circuit, then go to the next step.
4 | INSPECT NEGATIVE BATTERY CABLE • Inspect the negative battery cable. • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness for possible open circuit, then go to the next step.
5 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Reconnect the positive battery cable. • Reconnect the negative battery cable. • Clear the DTC using the M-MDS. (See CLEARING DTC [POSITION MEMORY CONTROL SYSTEM].) • Switch the ignition to ON. • Perform the DTC inspection using the M-MDS. • Is the same DTC present? | Yes | Replace the front seat slide adjuster. (See FRONT SEAT SLIDE ADJUSTER REMOVAL/INSTALLATION.)
No | DTC troubleshooting completed.