DTC Description Possible Causes Action B1B86-11
Seat Height Motor Relay -
Circuit short to ground
Driver seat parallel height
motor circuit - short to ground
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Refer to the
electrical circuit diagrams and check driver
seat parallel height motor circuit for short
to ground B1B86-15
Seat Height Motor Relay -
Circuit short to battery or
open
Driver seat parallel height
motor circuit - short to power,
open circuit
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Refer to the
electrical circuit diagrams and check driver
seat parallel height motor circuit for short
to power, open circuit B1B87-31
Seat Height Motor
Speed/Position Sensor - No
signal
Harness/connector problem
No signal from sensor
Sensor/motor malfunction
Check the seat wiring harness/connectors
for security/integrity
Refer to the electrical circuit diagrams and
check the seat height motor sensor circuit.
Repair circuit as required. Clear DTC and
retest B1B88-11
Seat Slide Motor Relay -
Circuit short to ground
Driver seat slide motor circuit -
short to ground
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Refer to the
electrical circuit diagrams and check driver
seat slide motor circuit for short to ground B1B88-15
Seat Slide Motor Relay -
Circuit short to battery or
open
Driver seat slide motor circuit -
short to power, open circuit
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Refer to the
electrical circuit diagrams and check driver
seat slide motor circuit for short to power,
open circuit B1B89-31
Seat Slide Motor
Speed/Position Sensor - No
signal
Harness/connector problem
No signal from sensor
Sensor/motor malfunction
Check the seat wiring harness/connectors
for security/integrity
Refer to the electrical circuit diagrams and
check the seat slide motor speed sensor
circuit. Repair circuit as required. Clear DTC
and retest B1B90-11
Seat Tilt Motor Relay -
Circuit short to ground
Driver seat tilt motor circuit -
short to ground
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Refer to the
electrical circuit diagrams and check driver
seat tilt motor circuit for short to ground B1B90-15
Seat Tilt Motor Relay -
Circuit short to battery or
open
Driver seat tilt motor circuit -
short to power, open circuit
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Refer to the
electrical circuit diagrams and check driver
seat tilt motor circuit for short to power,
open circuit B1B91-31
Seat Tilt Motor
Speed/Position Sensor - No
signal
Harness/connector problem
No signal from sensor
Sensor/motor malfunction
Check the seat wiring harness/connectors
for security/integrity
Refer to the electrical circuit diagrams and
check the seat tilt motor speed sensor
circuit. Repair circuit as required. Clear DTC
and retest B1B92-11
Seat Recline Motor Relay -
Circuit short to ground
Driver seat recline motor
circuit - short to ground
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Refer to the
electrical circuit diagrams and check driver
seat recline motor circuit for short to
ground
