#
POWER SLIDING DOOR (PSD) CONTROL MODULE DESCRIPTION

BME091101085T09

## Function

• The PSD control module controls the PSD system and the easy closure system based on input/output signals from each component in the PSD system.
• A fail-safe function, which sounds the buzzer to warn of abnormal input/output and inhibits operation when any abnormal input/output signals from the parts are detected during the PSD operation, has been adopted.
• The on-board diagnostic function that enables confirmation of abnormal input/output signals has been adopted.

## Terminal Layout and Signals

Terminal | Signal
--- | ---
| 1A | Easy closure control module (easy closure motor; close)
1B | Easy closure control module (easy closure motor; open)
1C | B+
1D | GND (signal)
2A | GND (power)
2B | PSD drive module (brake solenoid)
2D | PSD drive module (PSD motor; open)
2F | Door ajar warning light
2G | PSD drive module (PSD motor; close)
2H | Latch release actuator
| 3A | IG1
3B | Meter (speed)
3C | -
3D | Brake switch
3E | PSD front switch
3F | -
3G | PSD front switch (main switch)
3H | Easy closure control module (latch position switch)
3I | P position switch
3J | Rear door switch (RH or LH)
3K | PSD drive module (check switch)
3L | PSD drive module (speed sensor; pulse B)
3M | Parking brake switch
3N | PSD drive module (speed sensor; pulse A)
3O | Lock link switch
3P | Keyless control module
3Q | B+ (main)
3R | PSD rear switch (RH or LH)
3S | PSD front switch (RH or LH)
3T | -
3U | ABS warning light (instrument cluster)
3V | -
3W | PSD drive module (speed sensor; power)
3X | PSD drive module (speed sensor; GND)

## Timing chart

1 | Sliding door switch
2 | Latch position switch
3 | D-G
4 | D-F
5 | Sliding door circuit contact
6 | Deceleration starting position
7 | Check switch
8 | Speed sensor pulse A
9 | Speed sensor pulse B
10 | Lock-link switch
11 | Unlock
12 | Lock
13 | On
14 | Fully closed
15 | Ajar
16 | Open
17 | Checker position
18 | Fully open
19 | Approx. 620 mm {24.4 in}
20 | Approx. 200 mm {7.87 in}
21 | Approx. 420 mm {16.5 in}
22 | Approx. 50 mm {1.96 in}

## Sliding Door Speed/Position Detection Method

• The speed and position of the sliding door are detected according to the calculation based on the two kinds of pulses sent from the speed sensor in the PSD drive module.

## Fail-safe function

• If any of the following failures are detected, the PSD operation stops, or is inhibited until a normal condition is detected.
• If any of the following failures are detected, the buzzer sounds continuously. The buzzer sound stops when the main switch is at in-position (off).
• If the PSD operation is performed when the PSD operation is stopped or inhibited due to the fail-safe function, the buzzer sounds continuously. The buzzer sound stops when the main switch is at in-position (off).

Location (Module) | Location (Part) | Failure description
--- | --- | ---
PSD drive module | Speed sensor | Speed sensor OFF/ON failure (excluding power GND short)
Speed sensor power GND short (PSD not operating)
Speed sensor power GND short (PSD operating)
PSD motor | Short circuit at both PSD motor terminals
Open circuit in PSD motor (including GND short at one side)
Brake | Brake OFF failure
Operation parts | Abnormal operation load
PSD control module | PSD motor FET | PSD motor FET ON failure
Brake transistor | Brake transistor OFF failure
Vehicle speed input | Vehicle speed input | Abnormal vehicle speed input

## On-board Diagnostic Function

• The on-board diagnostic function has the following modes:

  - Operation permission condition check mode (Checking of conditions necessary to start operation)
  - DTC output

• In the operation permission condition check mode, input signals necessary for the PSD system operation (P position switch, parking brake switch, and vehicle speed) are checked as to whether they are normal.
• In the DTC output mode, abnormal input/output signals in the PSD system can be confirmed.
• The result of the operation permission condition check can be confirmed by flashing of the door ajar warning light and courtesy light, and buzzer sound.
• DTCs can be confirmed by flashing of the door ajar warning light and courtesy light.