Power Liftgate (PLG) Control Module Inspection: Notes
- Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
- Remove the following parts:
- Trunk board (See TRUNK BOARD REMOVAL/INSTALLATION .)
- Trunk covering (See TRUNK COVERING REMOVAL/INSTALLATION .)
- Trunk side pocket (See TRUNK SIDE POCKET REMOVAL/INSTALLATION .)
- Trunk end trim (See TRUNK END TRIM REMOVAL/INSTALLATION .)
- Rear scuff plate (See REAR SCUFF PLATE REMOVAL/INSTALLATION .)
- Third-row seat cushion (See THIRD-ROW SEAT CUSHION REMOVAL/INSTALLATION .)
- Third-row seat (See THIRD-ROW SEAT BACK COMPONENT REMOVAL/INSTALLATION .)
- Trunk side trim (See TRUNK SIDE TRIM REMOVAL/INSTALLATION .)
- Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
- Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).
- If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
- If the system does not work normally even though the inspection items are normal, replace the power liftgate (PLG) control module.
Terminal Voltage Table (Reference)
TERMINAL VOLTAGE REFERENCE
| Terminal | Signal name | Connected to | Measurement condition | Voltage (V)/Continuity | Inspection item(s) |
|---|---|---|---|---|---|
| 1A | CAN_L | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible | ||
| 1B | CAN_H | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible | ||
| 1C | - | - | - | - | - |
| 1D | Liftgate opener switch signal | Rear body control module (RBCM) | When the liftgate opener switch is ON | 2.0 or less | Rear body control module (RBCM) |
| When the liftgate opener switch is OFF | 5.0 | ||||
| 1E | Hall effect switch ground | Power liftgate (PLG) drive unit (RH) | Under any condition | 1.0 or less | Power liftgate (PLG) drive unit (RH) |
| 1F | Hall effect switch ground | Power liftgate (PLG) drive unit (LH) | Under any condition | 1.0 or less | Power liftgate (PLG) drive unit (LH) |
| 1G | Hall effect switch No. 1 | Power liftgate (PLG) drive unit (RH) | Liftgate is operating | Wave pattern (See Inspection Using an Oscilloscope (Reference) .) | Power liftgate (PLG) drive unit (RH) |
| 1H | Hall effect switch No. 1 | Power liftgate (PLG) drive unit (LH) | Liftgate is operating | Wave pattern (See Inspection Using an Oscilloscope (Reference) .) | Power liftgate (PLG) drive unit (LH) |
| 1I | Hall effect switch No. 2 | Power liftgate (PLG) drive unit (RH) | Liftgate is operating | Wave pattern (See Inspection Using an Oscilloscope (Reference) .) | Power liftgate (PLG) drive unit (RH) |
| 1J | Hall effect switch No. 2 | Power liftgate (PLG) drive unit (LH) | Liftgate is operating | Wave pattern (See Inspection Using an Oscilloscope (Reference) .) | Power liftgate (PLG) drive unit (LH) |
| 1K | Hall effect switch power supply | Power liftgate (PLG) drive unit (RH) | Under any condition | B+ | Power liftgate (PLG) drive unit (RH) |
| 1L | Hall effect switch power supply | Power liftgate (PLG) drive unit (LH) | Under any condition | B+ | Power liftgate (PLG) drive unit (LH) |
| 1M | Power liftgate (PLG) touch sensor GND | Body ground | Under any condition | 1.0 or less | Related wiring harnesses |
| 1N | Power liftgate (PLG) touch sensor signal (LH) | Power liftgate (PLG) touch sensor (LH) | When pressure is applied to the power liftgate (PLG) touch sensor (LH) | 1.0 or less | Power liftgate (PLG) touch sensor (LH) |
| Other | B+ | ||||
| 10 | Full latch switch | Liftgate latch and lock actuator | After opening the liftgate, operate the closure motor with the liftgate half closed | 1.0 or less→ B+→ 1.0 or less | Liftgate latch and lock actuator |
| 1P | Power liftgate (PLG) touch sensor signal (RH) | Power liftgate (PLG) touch sensor (RH) | When pressure is applied to the power liftgate (PLG) touch sensor (RH) | 1.0 or less | Power liftgate (PLG) touch sensor (RH) |
| Other | B+ | ||||
| 1Q | Half latch switch | Liftgate latch and lock actuator | After opening the liftgate, operate the closure motor with the liftgate half closed | 1.0 or less→ B+ | Liftgate latch and lock actuator |
| 1R | Power liftgate (PLG) buzzer output | Power liftgate (PLG) buzzer | When the power liftgate (PLG) buzzer is sounding | B+ | Power liftgate (PLG) buzzer |
| Other | 1.0 or less | ||||
| 1S | Liftgate condition | Rear body control module (RBCM) | Liftgate closed | B+ | Rear body control module (RBCM) |
| Other | 1.0 or less | ||||
| 1T | Motor return signal | Return switch | After opening the liftgate, operate the closure motor with the liftgate half closed | 1.0 or less | Liftgate latch and lock actuator |
| 1U | Door lock (driver-side) | Door latch and lock actuator | The driver-side doors is unlocked | B+ | Door latch and lock actuator |
| The driver-side doors is locked | 1.0 or less | ||||
| 1V | Door unlock (driver-side) | Door latch and lock actuator | The driver-side doors is unlocked | 1.0 or less | Door latch and lock actuator |
| The driver-side doors is locked | B+ | ||||
| 1W | - | - | - | - | - |
| 1X | Door unlock (passengerside and rear) | Door latch and lock actuator | The passenger-side and rear doors are all unlocked | 1.0 or less | Door latch and lock actuator |
| The passenger-side and rear doors are all locked | B+ | ||||
| 1Y | Power liftgate (PLG) front switch signal (Input) | Power liftgate (PLG) front switch | Power liftgate (PLG) front switch: Switch is at ON | B+ | Power liftgate (PLG) front switch |
| Power liftgate (PLG) front switch: Switch is at OFF | 1.0 or less | ||||
| 1Z | Liftgate opener switch signal | Liftgate opener switch | When the liftgate opener switch is ON | B+ | Liftgate opener switch |
| When the liftgate opener switch is OFF | 1.0 or less | ||||
| 1AA | Power supply | INTERIOR 20 A fuse | Under any condition | B+ | INTERIOR 20 A fuse |
| 1AB | - | - | - | - | - |
| 1AC | Power supply to power liftgate (PLG) switches | Power liftgate (PLG) switch | Power liftgate (PLG) front switch: Open or close switch is at ON | 1.0 or less | Power liftgate (PLG) control module |
| Power liftgate (PLG) front switch: Open or close switch is at OFF | B+ | ||||
| 1AD | Power supply | C/U IG1 15 A fuse | Ignition switched ON (engine off or on) | B+ | C/U IG1 15 A fuse |
| Ignition switched off or at ACC | 1.0 or less | ||||
| 1AE | - | - | - | - | - |
| 1AF | Power liftgate (PLG) rear switch signal | Power liftgate (PLG) rear switch | When operating the power liftgate (PLG) rear switch | B+ | Power liftgate (PLG) rear switch |
| When not operating the power liftgate (PLG) rear switch | 1.0 or less | ||||
| 2A | Liftgate open signal | Power liftgate (PLG) drive unit (LH) | Liftgate open operation | B+ | Power liftgate (PLG) drive unit (LH) |
| Other | 1.0 or less | ||||
| 2B | Liftgate close signal | Power liftgate (PLG) drive unit (RH) | Liftgate close operation | B+ | Power liftgate (PLG) drive unit (RH) |
| Other | 1.0 or less | ||||
| 2C | Liftgate close signal | Power liftgate (PLG) drive unit (LH) | Liftgate close operation | B+ | Power liftgate (PLG) drive unit (LH) |
| Other | 1.0 or less | ||||
| 2D | - | - | - | - | - |
| 2E | Liftgate open signal | Power liftgate (PLG) drive unit (LH) | Liftgate open operation | B+ | Power liftgate (PLG) drive unit (LH) |
| Other | 1.0 or less | ||||
| 2F | - | - | - | - | - |
| 2G | Closure motor (Open) | Liftgate latch and lock actuator | Open the fully closed liftgate by hand | 0 → B+ → 0 | Liftgate latch and lock actuator |
| 2H | GND | Body ground | Under any condition | 1.0 or less | Related wiring harnesses |
| 2I | Power supply | PLG 20 A fuse | Under any condition | B+ | PLG 20 A fuse |
| 2J | Closure motor (Closed) | Liftgate latch and lock actuator | After opening the liftgate, operate the closure motor with the liftgate half closed | 0 → B+ → 0 | Liftgate latch and lock actuator |