System Overview: Signals
The following table summarizes input signals to and output signals from the rear electronic module (REM). The signal types are divided into directly connected signals, serial communication and controller area network (CAN) communication. The illustration below displays the same information with the Volvo component designations.
| Input signals |
Output signals |
| Directly connected: |
Directly connected: |
- Fuel level sensor (7/130, 7/143)
- Fuel level sensor (CNG) (7/156)
- Fuel level sensor (LPG) (7/153)
- Stop lamps from the central electronic module (CEM) (4/56)
- Position sensor for headlamp range adjustment (Bi-Xenon) (7/120)
|
- Fuel level sensor (CNG) (7/156)
- Rear demist, relay (9/2)
- Cargo compartment lighting (10-127-128, 10/173)
- High level stop lamp (10/19)
- Position sensor for headlamp range adjustment (Bi-Xenon) (7/120)
- Inclination sensor module (ISM) (7/100).
|
| Via serial communication: |
Via serial communication: |
- Inclination sensor module (ISM) (optional extra) (7/100)
- Parking assistance (optional extra) (4/86) (applies only to the XC90 2003-2004).
|
- Inclination sensor module (ISM) (optional extra) (7/100)
- Parking assistance (optional extra) (4/86) (applies only to the XC90 2003-2004).
|
| Via Controller Area Network (CAN) communication: |
Via Controller Area Network (CAN) communication: |
- Climate Control Module (CCM) (3/112)
- Central electronic module (CEM) (4/56)
- Engine control module (ECM) (4/46)
- Supplemental Restraint System Module (SRS) (4/9)
- Upper electronic module (UEM) (4/70).
|
- Climate Control Module (CCM) (3/112)
- Central electronic module (CEM) (4/56)
- Driver information module (DIM) (5/1)
- Infotainment control module (ICM) (16/1) (XC90)
- Phone module (PHM) (optional equipment) (16/60)
- Supplemental Restraint System Module (SRS) (4/9)
- Transmission control module (TCM) (4/28).
|
Courtesy of VOLVO CARS CORPORATION