B1E3E
B1E3E-3RD ROW SEAT FOLD/TAILGATE SWITCH CIRCUIT HIGH
For a complete wiring diagram, refer to the Wiring Information.
- When Monitored:
Continuously.
- Set Condition:
When the Power Folding Seat senses voltage over 4.9 volts on the (P278) Fold/Tailgate Switch MUX circuit for longer than 300 milliseconds, this code will set.
Diagnostic Test
1. DTC PRESENT
1. With the scan tool, record and then erase DTCs.
2. Turn the ignition off, wait 10 seconds, then turn the ignition on.
3. Operate the Seat Switch several times.
4. With the scan tool, read DTCs.
Does the scan tool display this DTC as active?
Yes
- Go To 2
No
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
- Perform POWER FOLDING SEAT SYSTEM VERIFICATION TEST. Power Folding Seat System Verification Test.
2. CHECK THE (P278) FOLD/TAILGATE SWITCH MUX CIRCUIT VOLTAGE
1. Disconnect the Power Folding Seat Switch connector.
2. Measure the voltage between the (P278) Fold/Tailgate Switch MUX circuit and the (P279) Folding Seat Switch Return circuit at the Power Folding Seat Switch connector.
Choose result:
Over 5.0 volts
- Go To 3
4.9 volts + or - 0.1 volt
- Replace the Power Folding Seat Switch.
- Perform POWER FOLDING SEAT SYSTEM VERIFICATION TEST. Power Folding Seat System Verification Test.
3. CHECK THE (P278) FOLD/TAILGATE SWITCH MUX CIRCUIT FOR A SHORT TO VOLTAGE
1. Disconnect the C392 seat in-line 12-way harness connector.
2. Measure the voltage between the (P278) Fold/Tailgate Switch MUX circuit and ground.
Is any voltage present?
Yes
- Repair the (P278) Fold/Tailgate Switch MUX circuit for a short to voltage.
- Perform POWER FOLDING SEAT SYSTEM VERIFICATION TEST. Power Folding Seat System Verification Test.
No
- Gain access to and check the (P278) Fold/Tailgate Switch MUX wire in the seat harness for a short to another circuit. If OK, replace the Power Rear Folding Seat Module.
- Perform POWER FOLDING SEAT SYSTEM VERIFICATION TEST. Power Folding Seat System Verification Test.