DTC B103E:12 [REAR ONE-TOUCH WALK-IN CONTROL MODULE]

id0902t1990100

Description

Walk-in actuator (RH) circuit malfunction
Detection condition
•  Rear one-touch walk-in control module detects a short to power supply in the walk-in actuator (RH) circuit.
Fail-safe
•  Inhibits the rear one-touch walk-in operation function from being driven for the second-row seat (RH).
Possible cause
•  Rear one-touch walk-in control module connector or terminal malfunction
•  Short to power supply in wiring harness between the following circuits:
―  Rear one-touch walk-in control module terminal 3C―Walk-in actuator (RH)
―  Rear one-touch walk-in control module terminal 3D―Walk-in actuator (RH)
•  Walk-in actuator (RH) malfunction
•  Rear one-touch walk-in control module malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
INSPECT REAR ONE-TOUCH WALK-IN CONTROL MODULE CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the rear one-touch walk-in control module 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, then go to Step 5.
2
INSPECT WALK-IN ACTUATOR (RH) CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the rear one-touch walk-in control module connector is disconnected.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off or on).
•  Measure the voltage at the following terminals (wiring harness-side):
―  Rear one-touch walk-in control module terminal 3C
―  Rear one-touch walk-in control module terminal 3D
•  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 the following circuits:
•  Rear one-touch walk-in control module terminal 3C―Walk-in actuator (RH)
•  Rear one-touch walk-in control module terminal 3D―Walk-in actuator (RH)
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.
3
INSPECT WALK-IN ACTUATOR (RH)
•  Inspect the walk-in actuator (RH).
•  Is the walk-in actuator (RH) normal?
Yes
Go to the next step.
No
Replace the second-row seat (RH), then go to the Step 5.
(See SECOND-ROW SEAT REMOVAL/INSTALLATION.)
4
INSPECT REAR ONE-TOUCH WALK-IN CONTROL MODULE
•  Inspect the rear one-touch walk-in control module.
•  Is the rear one-touch walk-in control module normal?
Yes
Go to the next step.
No
Replace the rear one-touch walk-in control module, then go to the next step.
(See REAR ONE-TOUCH WALK-IN CONTROL MODULE 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.
•  Clear the DTC for the rear one-touch walk-in control module using the M-MDS.
•  Retrieve the rear one-touch walk-in control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the rear one-touch walk-in control module.
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 ONE-TOUCH WALK-IN CONTROL MODULE].)
No
DTC troubleshooting completed.