DTC B131C:13 [REAR ONE-TOUCH WALK-IN CONTROL MODULE]

id0902t1991100

Description	Walk-in actuator (LH) circuit malfunction
Detection condition	• Rear one-touch walk-in control module detects an open circuit or short to ground in the walk-in actuator (LH) circuit.
Fail-safe	Not applicable
Possible cause	• Walk-in actuator (LH) connector or terminal malfunction (R.H.D.) • Rear one-touch walk-in control module connector or terminal malfunction • Short to ground in wiring harness between the following circuits: ? L.H.D. • Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) • Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) ? R.H.D. • Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) terminal B • Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) terminal A • Open circuit in wiring harness between the following circuits: ? L.H.D. • Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) • Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) ? R.H.D. • Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) terminal B • Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) terminal A • Walk-in actuator (LH) malfunction • Rear one-touch walk-in control module malfunction

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	L.H.D. • Go to Step 3. R.H.D. • Go to the next step.
2	INSPECT WALK-IN ACTUATOR (LH) CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the walk-in actuator (LH) 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.
2		No	Repair or replace the connector, then go to Step 8.
3	INSPECT REAR ONE-TOUCH WALK-IN CONTROL MODULE CONNECTOR CONDITION • 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.
3		No	Repair or replace the connector, then go to Step 8.
4	INSPECT WALK-IN ACTUATOR (LH) CIRCUIT FOR SHORT TO GROUND • Verify that the walk-in actuator (LH) (R.H.D.) and rear one-touch walk-in control module connectors are disconnected. • Inspect for continuity between the following terminals (wiring harness-side) and body ground: ? Rear one-touch walk-in control module terminal 3E ? Rear one-touch walk-in control module terminal 3F • Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following circuits: • L.H.D ? Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) ? Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) • R.H.D ? Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) terminal B ? Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) 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 ground. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to ground. Go to Step 8.
4		No	Go to the next step.
5	INSPECT WALK-IN ACTUATOR (LH) CIRCUIT FOR OPEN CIRCUIT • Verify that the walk-in actuator (LH) (R.H.D.) and rear one-touch walk-in control module connectors are disconnected. • Inspect for continuity between the following circuits (wiring harness-side): ? L.H.D. • Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) • Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) ? R.H.D. • Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) terminal B • Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) terminal A • Is there continuity?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following circuits: • L.H.D ? Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) ? Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) • R.H.D ? Rear one-touch walk-in control module terminal 3E?Walk-in actuator (LH) terminal B ? Rear one-touch walk-in control module terminal 3F?Walk-in actuator (LH) 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 an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 8.
6	INSPECT WALK-IN ACTUATOR (LH) • Inspect the walk-in actuator (LH). (See WALK-IN ACTUATOR INSPECTION.) • Is the walk-in actuator (LH) normal?	Yes	Go to the next step.
6		No	Replace the second-row seat (LH), then go to the Step 8. (See SECOND-ROW SEAT REMOVAL/INSTALLATION.)
7	INSPECT REAR ONE-TOUCH WALK-IN CONTROL MODULE • Inspect the rear one-touch walk-in control module. (See REAR ONE-TOUCH WALK-IN CONTROL MODULE INSPECTION.) • Is the rear one-touch walk-in control module normal?	Yes	Go to the next step.
7		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.)
8	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 one-touch walk-in control module using the M-MDS. (See CLEARING DTC [REAR ONE-TOUCH WALK-IN CONTROL MODULE].) • Retrieve the rear one-touch walk-in control module DTCs using the M-MDS. (See DTC INSPECTION [REAR ONE-TOUCH WALK-IN CONTROL MODULE].) • 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. (See REAR ONE-TOUCH WALK-IN CONTROL MODULE REMOVAL/INSTALLATION.) Go to the next step.
8		No	Go to the next step.
9	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].)
9		No	DTC troubleshooting completed.