TEST
ACTION
APPLICABILITY
3
Turn ignition off.
Disconnect the Driver Power Seat Front Riser Position Sensor Connector.
Disconnect the Memory Seat Mirror Module C1 Connector.
Measure the resistance of the Front Riser Position Signal circuit between the front
riser sensor and the Memory Seat Mirror Module connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 4
No
→ Repair the Front Riser Position Signal circuit for an open.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
4
Turn ignition off.
Disconnect the Memory Seat Mirror Module C1 connector.
Disconnect the Driver Power Seat Front Riser Position Sensor connector.
Measure the resistance of the Front Riser Position Signal circuit to ground.
Is the resistance below 1000 ohms?
All
Yes
→ Repair the Front Riser Position Signal circuit a short to ground.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn ignition off.
Ensure the Memory Seat Mirror Module is fully connected before proceeding.
Disconnect the Driver Power Seat Front Riser Position Sensor Connector.
Connect a jumper wire between Seat Sensor 5 volt Supply and Front Riser Position
Signal circuits.
Turn ignition on.
With the DRBIII
t select Body Memory Seat Sensors.
Read the Front Riser Position Sensor voltage.
Is the voltage above 4.5 volts?
All
Yes
→ Replace the Seat Track Assembly.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No
→ Go To 6
6
If there are no possible causes remaining, view repair.
All
Repair
Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
7
Turn ignition off.
Disconnect the Memory Seat Mirror Module C2 connector.
Measure the resistance of the Seat Sensor 5 volt supply circuit to body ground.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the Seat 5 Volt Supply circuit for a short to ground.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No
→ Go To 8
679
MEMORY SEAT
FRONT RISER SENSOR OUT OF RANGE LOW —
Continued