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POWER SEATS
DRIVER REAR RISER SENSOR OUT OF RANGE HIGH - MHSAPM —
Continued
TEST
3
Disconnect the Driver Rear Riser Seat Position Sensor connector.
Measure the voltage between Driver Seat Sensor 5 volt supply circuit and ground.
Turn ignition on.
Is the voltage above 5.5 volts?
Yes → Repair the Driver Seat Sensor 5 Volt Supply circuit for a short to
→ Go To 4
No
4
Turn ignition off.
Disconnect the Driver Rear Riser Seat Position Sensor Connector.
Disconnect the MHSAPM C2 Connector.
Turn ignition on.
Measure the voltage between Driver Seat Rear Riser Seat Position Signal circuit and
ground.
Is the voltage above 0.2 volts?
Yes → Repair the Driver Seat Rear Riser Position Signal circuit for a
→ Go To 5
No
5
Turn ignition off.
Disconnect the Driver Rear Riser Seat Position Sensor Connector.
Ensure the MHSAPM is fully connected before proceeding.
Turn ignition on.
With the DRBIII in Body MHSAPM Sensors
Read the Driver Seat Rear Riser Sensor voltage.
Is the voltage above 0.2 volts?
Yes → Go To 6
→ Replace the Seat Track Assembly.
No
6
Ensure all seat and sensor connectors are connected and rear riser motor is
operational.
With the DRBIII in MHSAPM Sensors monitor the Driver Seat Rear Riser sensor
while operating the seat rear riser to both limits.
Did the voltage ever go above 7.0 volts only when the motor was in operation?
Yes → Replace the Seat Track Assembly.
→ Go To 7
No
7
If there are no possible causes remaining, view repair.
Repair
ACTION
battery.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER
1.
short to voltage.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER
1.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER
1.
Replace the Memory/Heated Seat Adjustable Pedal Module.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
854
APPLICABILITY
All
All
All
All
All
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