Symptom Chart

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Symptom	Diagnoses / service procedure
A part of seat system does not operate (both automatically and manually).	1. CHECK SLIDING MOTOR CIRCUIT
	2. CHECK RECLINING MOTOR CIRCUIT
	3. CHECK FRONT LIFTER MOTOR CIRCUIT
	4. CHECK REAR LIFTER MOTOR CIRCUIT
	5. IF THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE DRIVER SEAT CONTROL UNIT.
A part of steering tilt and telescopic does not operate (both automatically and manually).	1. CHECK TILT MOTOR CIRCUIT
	2. CHECK TELESCOPIC MOTOR CIRCUIT
	3. IF THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE AUTOMATIC DRIVE POSITIONER CONTROL UNIT.
A part of seat system does not operate (only automatic operation).	1. CHECK SLIDING SENSOR CIRCUIT
	2. CHECK RECLINING SENSOR CIRCUIT
	3. CHECK FRONT LIFTING SENSOR CIRCUIT
	4. CHECK REAR LIFTING SENSOR CIRCUIT
	5. IF THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE DRIVER SEAT CONTROL UNIT.
All the automatic operations do not operate.	1. CHECK P RANGE SWITCH CIRCUIT (WITH A/T)
	2. CHECK PARKING BRAKE SWITCH CIRCUIT (WITH M/T)
	3. CHECK KEY SWITCH AND IGNITION KNOB SWITCH CIRCUIT (WITH INTELLIGENT KEY)
	4. CHECK KEY SWITCH CIRCUIT (WITHOUT INTELLIGENT KEY)
	5. CHECK DOOR SWITCH (DRIVER SIDE) CIRCUIT
	6. CHECK UART COMMUNICATION LINE CIRCUIT
	7. CHECK TILT SENSOR CIRCUIT
	8. CHECK TELESCOPIC SENSOR CIRCUIT
	9. IF ALL THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE AUTOMATIC DRIVE POSITIONER CONTROL UNIT OR DRIVER SEAT CONTROL UNIT OR BCM.
A part of seat system does not operate (only manual operation).	1. CHECK SLIDING SWITCH CIRCUIT
	2. CHECK RECLINING SWITCH CIRCUIT
	3. CHECK FRONT LIFTING SWITCH CIRCUIT
	4. CHECK REAR LIFTING SWITCH CIRCUIT
	5. IF THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE DRIVER SEAT CONTROL UNIT.
A part of steering tilt and telescopic do not operate (only manual operation).	1. CHECK TILT SWITCH
	2. CHECK TELESCOPIC SWITCH
	3. IF THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE AUTOMATIC DRIVE POSITIONER CONTROL UNIT.
Only seat memory and set switch operation does not operate.	1. CHECK SEAT MEMORY AND SET SWITCH CIRCUIT
Only seat memory and set switch operation does not operate.	2. IF THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE DRIVER SEAT CONTROL UNIT.
Seat memory indicator lamps 1 and 2 do not illuminate.	1. CHECK SEAT MEMORY INDICATOR LAMP CIRCUIT
Seat memory indicator lamps 1 and 2 do not illuminate.	2. IF ALL THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE DRIVER SEAT CONTROL UNIT.
Only steering system does not operated	CHECK TILT SENSOR AND TELESCOPIC SENSOR POWER SUPPLY AND GROUND CIRCUIT
Only seat sliding and reclining operation does not operation	CHECK SLIDING AND RECLINING SWITCH GROUND CIRCUIT
Only seat lifting (front and rear) operation does not operation	CHECK LIFTING SWITCH (FRONT AND REAR) GROUND CIRCUIT
Power walk-in system does not operated, but power seat can be operated.	1. CHECK SLIDING LIMIT SWITCH SIGNAL
	2. CHECK SEATBACK SWITCH SIGNAL
	3. CHECK POWER WALK-IN SWITCH SIGNAL
	4. CHECK SEAT BELT BUCKLE SWITCH SIGNAL
	5. IF ALL THE ABOVE SYSTEMS ARE NORMAL, REPLACE THE DRIVER SEAT CONTROL UNIT.