Lexus IS250 IS220d GSE20 ALE20 - SEAT
FRONT POWER SEAT CONTROL SYSTEM (w/ Seat Position Memory System) - DATA LIST / ACTIVE TEST
| READ DATA LIST |
- HINT:
- Using the tester's DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Read the DATA LIST.
| Item | Measurement Item / Display (Range) | Normal Condition | Diagnostic Note |
| Seat Memory No. 1 | M1 switch signal / ON or OFF | ON: M1 switch is ON OFF: M1 switch is OFF | - |
| Seat Memory No. 2 | M2 switch signal / ON or OFF | ON: M2 switch is ON OFF: M2 switch is OFF | - |
| Seat Memory No. 3 | M3 switch signal / ON or OFF | ON: M3 switch is ON OFF: M3 switch is OFF | - |
| Seat SET Switch | SET switch signal / ON or OFF | ON: SET switch is ON OFF: SET switch is OFF | - |
| Item | Measurement Item / Display (Range) | Normal Condition | Diagnostic Note |
| Reclining Rear | Reclining switch signal (Rearward) / ON or OFF | ON: Reclining switch (Rearward) is ON OFF: Reclining switch (Rearward) is OFF | - |
| Reclining Front | Reclining switch signal (Forward) / ON or OFF | ON: Reclining switch (Forward) is ON OFF: Reclining switch (Forward) is OFF | - |
| Front Vertical Down | Front vertical switch signal (Downward) / ON or OFF | ON: Front vertical switch (Downward) is ON OFF: Front vertical switch (Downward) is OFF | - |
| Front Vertical Up | Front vertical switch signal (Upward) / ON or OFF | ON: Front vertical switch (Upward) is ON OFF: Front vertical switch (Upward) is OFF | - |
| Lifter Switch Down | Lifter switch signal (Downward) / ON or OFF | ON: Lifter switch (Downward) is ON OFF: Lifter switch (Downward) is OFF | - |
| Lifter Switch Up | Lifter switch signal (Upward) / ON or OFF | ON: Lifter switch (Upward) is ON OFF: Lifter switch (Upward) is OFF | - |
| Slide Rear | Sliding switch signal (Rearward) / ON or OFF | ON: Sliding switch (Rearward) is ON OFF: Sliding switch (Rearward) is OFF | - |
| Slide Front | Sliding switch signal (Forward) / ON or OFF | ON: Sliding switch (Forward) is ON OFF: Sliding switch (Forward) is OFF | - |
| Power Voltage | Power supply for front power seat switch (position control ECU) / MIN: 0 V, MAX: 19.89 V | Within range from 11 to 14 V | - |
| Ignition Switch | Engine switch status (IG) / ON or OFF | ON: Engine switch is on (IG) OFF: Engine switch is off | - |
| KSW Switch | Engine switch status (IG) / ON or OFF | ON: Engine switch is on (IG) OFF: Engine switch is off | - |
| DCTY Switch / P Door Courtesy | Door courtesy switch signal / ON or OFF | ON: Either of driver or passenger door is open OFF: Non of the door is closed | - |
| P Switch | Shift lever position P signal / ON or OFF | ON: Shift lever in P position OFF: Shift lever in any position other than P | - |
| Pkbs Switch | Parking brake switch status / ON or OFF | ON: Parking brake is operated OFF: Parking brake is released | - |
| Key Code Confirm | Recognition code is registered / ON or OFF | ON: One or more recognition codes are registered OFF: No recognition code is registered | - |
| M3 Switch | M3 switch signal / ON or OFF | ON: M3 switch is ON OFF: M3 switch is OFF | - |
| M2 Switch | M2 switch signal / ON or OFF | ON: M2 switch is ON OFF: M2 switch is OFF | - |
| M1 Switch | M1 switch signal / ON or OFF | ON: M1 switch is ON OFF: M1 switch is OFF | - |
| SET Switch | SET switch signal / ON or OFF | ON: SET switch is ON OFF: SET switch is OFF | - |
| Slide Position | Seat sliding position / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Reclining Position | Seatback position / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Front Vertical Position | Seat front vertical position / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Lifter Position | Seat lifter position / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Memory No. 1 | Driving position memorized with M1 switch / MEM or NOT MEM | MEM: Memorized NOT MEM: Not memorized | - |
| Memory No. 2 | Driving position memorized with M2 switch / MEM or NOT MEM | MEM: Memorized NOT MEM: Not memorized | - |
| Memory No. 3 | Driving position memorized with M3 switch / MEM or NOT MEM | MEM: Memorized NOT MEM: Not memorized | - |
| Seat Memory No. 1 | Seat position memorized with M1 switch / MEM or NOT MEM | MEM: Memorized NOT MEM: Not memorized | - |
| Seat Memory No. 2 | Seat position memorized with M2 switch / MEM or NOT MEM | MEM: Memorized NOT MEM: Not memorized | - |
| Seat Memory No. 3 | Seat position memorized with M3 switch / MEM or NOT MEM | MEM: Memorized NOT MEM: Not memorized | - |
| Slide Pos Mem No. 1 | Seat sliding position memorized with M1 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Reclining Pos Mem No. 1 | Seatback position memorized with M1 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Frnt Vrtcl Pos Mem No. 1 | Front vertical position memorized with M1 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Lifter Pos Mem No. 1 | Lifter position memorized with M1 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Slide Pos Mem No. 2 | Seat sliding position memorized with M2 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Reclining Pos Mem No. 2 | Seatback position memorized with M2 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Frnt Vrtcl Pos Mem No. 2 | Front vertical position memorized with M2 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Lifter Pos Mem No. 2 | Lifter position memorized with M2 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Slide Pos Mem No. 3 | Seat sliding position memorized with M3 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Reclining Pos Mem No. 3 | Seatback position memorized with M3 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Frnt Vrtcl Pos Mem No. 3 | Front vertical position memorized with M3 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| Lifter Pos Mem No. 3 | Lifter position memorized with M3 switch / MIN: -4096, MAX: 4096 | Within range from -4096 to 4096 | - |
| PERFORM ACTIVE TEST |
- HINT:
- Performing the intelligent tester's ACTIVE TEST allows a relay, VSV, actuator, and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time. The DATA LIST can be displayed during the ACTIVE TEST.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Perform the ACTIVE TEST.
| Item | Test Details | Diagnostic Note |
| Seat Reclining | Seat reclining operation FRONT / REAR | - |
| Front Vertical Operation | Seat front vertical operation UP / DOWN | - |
| Lifter Operation | Seat lifter operation UP / DOWN | - |
| Seat Slide Operation | Seat sliding operation FRONT / REAR | - |
LEXUS IS250, IS220d / GSE20 ALE20