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The following abbreviations are used to represent values for Control Module Pin-Out data
I Input PG Power Ground C CAN Network D Serial and Encoded Data
O Output SS Sensor / Signal Supply V S SCP Network V Voltage (DC)
B+ Battery Voltage SG Sensor / Signal Ground D2 D2B Network PWM Pulse Width Modulated
CAUTION: The information on this data page is furnished to aid the user in understanding circuit operation. THIS INFORMATION SHOULD BE USED FOR
REFERENCE ONLY.
NOTE: The values listed are approximately those that can be expected at the control module connector pins with all circuit connections made and all components
connected and fitted.
Refer to the front of this book for detailed information and illustrations regarding the location and identification of harnesses, relays, fuses, grounds, control
modules and control module pins.
DATE OF ISSUE: June 2002
Fig. 11.2
COMPONENTS
Component Connector(s) Connector Description Location
DRIVER SEAT CONTROL MODULE DM33 26-WAY / BLACK UNDER DRIVER SEAT
DM34 22-WAY / BLACK
DM35 6-WAY / BLACK
DM36 4-WAY / BLACK
DM37 4-WAY / BLACK
DM38 6-WAY / BLACK
LUMBAR PUMP – DRIVER (16-WAY) DL3 2-WAY / BLACK LOWER SEAT BACK
LUMBAR SOLENOIDS – DRIVER DL1 6-WAY / BLACK UPPER SEAT BACK
SEAT MOTORS AND POSITION SENSORS – DRIVER DM25 4-WAY / BLACK DRIVER SEAT
DM26 4-WAY / BLACK
DM27 4-WAY / BLACK
DM28 4-WAY / BLACK
DM29 4-WAY / BLACK
DM31 4-WAY / BLACK
SEAT SWITCH PACK – DRIVER DM7 12-WAY / BLACK DRIVER SEAT
DM43 14-WAY / BLACK
HARNESS IN-LINE CONNECTORS
Connector Connector Description / Location Location
DL2 6-WAY / BLACK / DRIVER SEAT IN-LINE CONNECTOR DRIVER SEAT BACK REST
DM22 4-WAY / GREY / CABIN HARNESS TO DRIVER SEAT HARNESS UNDER DRIVER SEAT
DM23 20-WAY / BLACK / CABIN HARNESS TO DRIVER SEAT HARNESS UNDER DRIVER SEAT
GROUNDS
Ground Location
CA141 UNDER LH FRONT SEAT
CA154 UNDER RH FRONT SEAT
FOR CONTROL MODULE PIN-OUT INFORMATION, UNFOLD PAGE TO LEFT.
CONTROL MODULE PIN-OUT INFORMATION
Driver Seat Control Module
Pin Description and Characteristic
IDM33-7 SEAT CUSHION FRONT POSITION SENSOR SIGNAL: 5 V PULSED SIGNAL
IDM33-8 SEAT HEIGHT POSITION SENSOR SIGNAL: 5 V PULSED SIGNAL
IDM33-9 HEADREST POSITION SENSOR SIGNAL: 5 V PULSED SIGNAL
I DM33-10 SEAT BACK RECLINE POSITION SENSOR SIGNAL: 5 V PULSED SIGNAL
SG DM33-11 SIGNAL GROUND: GROUND
SG DM33-12 SIGNAL GROUND: GROUND
B+ DM33-13 BATTERY POWER SUPPLY: LOGIC: B+
I DM33-22 SEAT POSITION SENSOR SIGNAL: 5 V PULSED SIGNAL
I DM33-23 SEAT CUSHION EXTEND POSITION SENSOR SIGNAL: 5 V PULSED SIGNAL
SG DM33-25 SIGNAL GROUND: GROUND
SG DM33-26 LOGIC GROUND: GROUND
SDM34-1 SCP +
IDM34-4 SEAT CUSHION FRONT RAISE REQUEST: ACTIVE = B+
IDM34-5 SEAT CUSHION FRONT LOWER REQUEST: ACTIVE = B+
I DM34-10 SEAT BACK RECLINE REARWARD REQUEST: ACTIVE = B+
I DM34-11 SEAT BACK RECLINE FORWARD REQUEST: ACTIVE = B+
S DM34-12 SCP –
I DM34-15 HEAD REST RAISE REQUEST: ACTIVE = B+
I DM34-16 HEADREST LOWER REQUEST: ACTIVE = B+
I DM34-17 SEAT RAISE REQUEST: ACTIVE = B+
I DM34-18 SEAT LOWER REQUEST: ACTIVE = B+
I DM34-19 SEAT FORWARD REQUEST: ACTIVE = B+
I DM34-20 SEAT REARWARD REQUEST: ACTIVE = B+
I DM34-21 SEAT CUSHION EXTEND REARWARD REQUEST: ACTIVE = B+
I DM34-22 SEAT CUSHION EXTEND FORWARD REQUEST: ACTIVE = B+
ODM35-1 SEAT HEIGHT MOTOR DRIVE – RAISE: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM35-2 SEAT HEIGHT MOTOR DRIVE – LOWER: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
PG DM35-5 POWER GROUND: GROUND
B+ DM35-6 BATTERY POWER SUPPLY: B+
ODM36-1 SEAT POSITION MOTOR DRIVE – FORWARD: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM36-2 SEAT POSITION MOTOR DRIVE – REARWARD: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM36-3 SEAT CUSHION EXTEND MOTOR DRIVE – REARWARD: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM36-4 SEAT CUSHION EXTEND MOTOR DRIVE – FORWARD: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM37-3 SEAT BACK RECLINE MOTOR DRIVE – REARWARD: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM37-4 SEAT BACK RECLINE MOTOR DRIVE – FORWARD: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
PG DM38-1 POWER GROUND: GROUND
B+ DM38-2 BATTERY POWER SUPPLY: B+
ODM38-3 HEADREST POSITION MOTOR DRIVE – RAISE: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM38-4 HEADREST POSITION MOTOR DRIVE – LOWER: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM38-5 SEAT CUSHION FRONT MOTOR DRIVE – RAISE: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
ODM38-6 SEAT CUSHION FRONT MOTOR DRIVE – LOWER: TO ACTIVATE, DSCM SWITCHES CIRCUIT TO B+
NOTE: Refer to the Appendix at the rear of this book for Network Messages.