B1E31

B1E31 - 3rd Row Seat Left Backrest Switch Stuck Rearward






For a complete wiring diagram, refer to.

• When Monitored: Continuously.

• Set Condition: When the power rear folding seat module senses the left recliner switch rearward switch position input for longer than 50 seconds, this code will set.






Test Step 1 - Test For Intermittent Condition

• Turn the ignition ON.

• With the scan tool, erase all DTCs.

• Operate the seat recliner switch several times.

• With the scan tool, read DTCs.

Does the scan tool display this DTC?

Yes

• Go to Test Step 2 => [ Test
Step 2 - Seat Recliner Switch Stuck ]

No

• The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.

• Perform Power Folding Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Folding Seat System Verification Test

Test Step 2 - Seat Recliner Switch Stuck

• With the scan tool, erase all DTCs.

• Disconnect the left power rear folding seat recliner switch harness connector.

• Turn the ignition ON.

• With the scan tool, read DTCs.

Does the scan tool display this DTC?

Yes

• Go to Test Step 3 => [ Test
Step 3 - Left Seat Recliner Switch MUX Circuit Short to Seat Recliner
Switch Return ]

No

• Replace the left power rear folding seat recliner switch.

• Perform Power Folding Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Folding Seat System Verification Test

Test Step 3 - Left Seat Recliner Switch MUX Circuit Short to Seat Recliner Switch Return






• Turn the ignition OFF.

• Disconnect the power rear folding seat module C6 harness connector.

• Measure the resistance between the left seat recliner switch MUX and the seat recliner switch return circuit at the switch connector.

Is the resistance above 10k ohms?

Yes

• Go to Test Step 4 => [ Test
Step 4 - P282 Left Seat Recliner Switch MUX Circuit Short to Ground ]

No

• Repair the left seat recliner switch MUX circuit for a short to the seat recliner switch return circuit.

• Perform Power Folding Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Folding Seat System Verification Test

Test Step 4 - P282 Left Seat Recliner Switch MUX Circuit Short to Ground






• the ignition is Off.

• Measure the resistance between ground and the left seat recliner switch MUX circuit at the switch connector.

Is the resistance above 10k ohms?

Yes

• Replace the power rear folding seat module.

• Perform Power Folding Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Folding Seat System Verification Test

No

• Repair the left seat recliner switch MUX circuit for a short to ground.

• Perform Power Folding Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Folding Seat System Verification Test