Pinpoint Test D : The RH (Right-Hand) Power Recline Seat Is Inoperative
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
- D1 CHECK THE OPERATION OF THE POWER FOLDING SEAT
- Ignition ON.
- Open the liftgate.
- Using the third row folding seat switch, attempt to operate the RH power folding seat to the folded and upright positions.
Does the RH seat operate correctly when using the third row folding seat switch?
Yes GO to D2 No GO to Pinpoint Test G - D2 CHECK THE THIRD ROW SEAT RECLINE SWITCH RESISTANCE VALUES
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead C4250D-8 C4250C-4 Switch Position Resistance Recline rearward 1.7K - 1.8K ohms Recline forward 3.1K- 3.3K ohms Switch at rest 14.8K - 15.1K ohms
Is the resistance within the specified range for each control switch position?
Yes GO to D5 No GO to D3 - D3 CHECK THE THIRD ROW SEAT RECLINE SWITCH CIRCUIT FOR A SHORT TO GROUND
- Disconnect: RH Third Row Seat Recline Switch C4559 .
- Measure:
Positive Lead Measurement / Action Negative Lead C4559-2 Ground
Is the resistance greater than 10, 000 ohms?
Yes REPAIR the circuit. No GO to D4 - D4 CHECK THE THIRD ROW SEAT RECLINE SWITCH CIRCUITS FOR AN OPEN
- Measure:
Positive Lead Measurement / Action Negative Lead C4559-2 C4250D-8 Positive Lead Measurement / Action Negative Lead C4559-3 C4250C-4
Are the resistances less than 3 ohms?
Yes INSTALL a new third row seat recline switch. No REPAIR the circuit in question. - Measure:
- D5 CHECK THE SCMJ (POWER FOLD SEAT MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect the SCMJ connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins as necessary
- pushed-out pins - install new pins as necessary
- Reconnect the SCMJ connectors. Make sure they seat and latch correctly.
- Reconnect all previously disconnected connectors.
- Ignition ON.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMJ. REFER to: Power Fold Seat Module (PFSM) . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.