DTC B1D63:12 [REAR POWER SEAT CONTROL MODULE (RH)]

id0902t3572700

Description	Seat position sensor (RH) power supply circuit malfunction
Detection condition	•  Rear power seat control module (RH) detects a short to power supply in the seat position sensor (RH) power supply circuit.
Fail-safe	Not applicable
Possible cause	•  Seat position sensor (RH) connector or terminal malfunction •  Rear power seat control module (RH) connector or terminal malfunction •  Short to power supply in wiring harness between rear power seat control module (RH) terminal 2I and seat position sensor (RH) terminal A •  Rear power seat control module (RH) malfunction

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT SEAT POSITION SENSOR (RH) CONNECTOR CONDITION •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the seat position sensor (RH) connector. •  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector and/or terminals, then go to Step 5.
2	INSPECT REAR POWER SEAT CONTROL MODULE (RH) CONNECTOR CONDITION •  Disconnect the rear power seat control module (RH) connector. •  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector and/or terminals, then go to Step 5.
3	INSPECT SEAT POSITION SENSOR (RH) CIRCUIT FOR SHORT TO POWER SUPPLY •  Verify that the seat position sensor (RH) and rear power seat control module (RH) connectors are disconnected. •  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off or on). •  Measure the voltage at the rear power seat control module (RH) terminal 2I (wiring harness-side). •  Is the voltage 0 V?	Yes	Go to the next step.
		No	Refer to the wiring diagram and verify whether or not there is a common connector between rear power seat control module (RH) terminal 2I and seat position sensor (RH) terminal A. If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. •  Repair or replace the malfunctioning part. If there is no common connector: •  Repair or replace the wiring harness which has a short to power supply. Go to Step 5.
4	INSPECT REAR POWER SEAT CONTROL MODULE (RH) •  Inspect the rear power seat control module (RH). (See REAR POWER SEAT CONTROL MODULE (RH) INSPECTION.) •  Is the part normal?	Yes	Go to the next step.
		No	Replace the second-row seat (RH), then go to the next step. (See SECOND-ROW SEAT REMOVAL/INSTALLATION.)
5	VERIFY THAT REPAIRS HAVE BEEN COMPLETED •  Reconnect all the disconnected connectors with the negative battery terminal disconnected. •  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Clear the DTC for the rear power seat control module (RH) using the M-MDS. (See CLEARING DTC [REAR POWER SEAT CONTROL MODULE (RH)].) •  Retrieve the rear power seat control module (RH) DTCs using the M-MDS. (See DTC INSPECTION [REAR POWER SEAT CONTROL MODULE (RH)].) •  Is the same Pending DTC present?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the second-row seat (RH). (See SECOND-ROW SEAT REMOVAL/INSTALLATION.) Go to the next step.
		No	Go to the next step.
6	VERIFY IF OTHER DTCs DISPLAYED •  Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [REAR POWER SEAT CONTROL MODULE (RH)].)
		No	DTC troubleshooting completed.