Electronic Components and Installations Locations

ABS/EDL/ASR Bosch 5.3





Electrical/Electronic Components and Installations Locations
1 - ABS hydraulic unit -N55-
^ Located on left side of engine compartment.
The hydraulic unit consists of:
^ ABS return flow pump -V39-
^ Can be checked using "Guided fault finding" with VAS5051
^ Valve block (contains in/outlet valves).
^ The ABS return flow pump -V39- and valve block must not be separated from one another
2 - ABS control module (w/EDL)-J104-
^ Located on the hydraulic unit on left side of engine compartment.
^ Can be checked using "Guided fault finding" with the VAS5051
^ Do not disconnect connector (26 pin) before checking of Diagnostic Trouble Code (DTC) memory. First switch ignition off then separate connector.
3 - ABS hydraulic unit -N55- for ABS/EDL or ABS/EDL with ASR
^ Located on left side of engine compartment.
The hydraulic unit consists of:
^ ABS return flow pump -V39-
^ Can be checked using "Guided fault finding" with VAS 5051
^ Valve block (contains the in/outlet valves).
^ The ABS return flow pump -V39- and valve block must not be separated from one another
Distinguishing features:
^ Hydraulic unit can only be distinguished externally by different part numbers.
4 - Control module for ABS/EDL or ABS/EDL with ASR -J104-
^ Located on hydraulic unit on left side of engine compartment.
^ Can be checked using "Guided fault finding" with the VAS 5051
^ Do not disconnect connector (26 or 31 pin) before checking of (DTC) memory. First switch ignition off then separate connector.
Distinguishing features:
^ Hydraulic unit can be distinguished externally by different part numbers.
^ With ASR wiring harness connection for ABS control module (w/EDL) -J104- has 5 additional contacts (31 pin).
5 - Traction control indicator light -K86-
^ Location: In the instrument cluster
Function, Refer to Malfunctions Displayed By Warning Lights (ABS/Edl/ASR Bosch 5.3)
6 - Warning light for brake system -K118-
^ Location: In the instrument cluster
Function, Refer to Malfunctions Displayed By Warning Lights (ABS/Edl/ASR Bosch 5.3)
7 - ABS warning light -K47-
^ Location: In the instrument cluster
Function, Refer to Malfunctions Displayed By Warning Lights (ABS/Edl/ASR Bosch 5.3)
8 - Brake system vacuum pump -V192-
^ Not installed in all vehicles
^ Located on left side of engine compartment.
^ Checked by On Board Diagnostic (OBD) in engine control module
^ Removing and installing, Refer to Vacuum Pump, Brakes, Service and Repair
^ Checking, Refer to Vacuum Pump, Brakes, Testing and Inspection
9 - Brake booster pressure sensor -G294-
^ Not installed in all vehicles
^ Location: in vacuum hose on brake servo
^ Checked by OBD in engine control module
^ Removing and installing, Refer to Sensors and Switches - Brakes and Traction Control, Brake Booster Vacuum Sensor, Service and Repair
10 - Brake light switch -F-
^ Adjusting, Refer to Lighting and Horns, Brake Light Switch, Adjustments
^ Can be checked using "Guided fault finding" with the VAS5051
11 - Data Link Connector (DLC)
^ Location to model year 2000: below cover next to parking brake lever
^ Location from model year 2001: below stowage compartment, driver's side
12 - Impulse wheel for right and left front speed sensors
13 - Right/left front ABS wheel speed sensor -G45-l-G47
^ Can be checked using "Guided fault finding" with the VAS5051
^ Removing,
14 - Right/left rear ABS speed sensor -G44-/-G46-
(Figure for Front Wheel Drive (FWD))
^ Can be checked using "Guided fault finding" with the VAS 5051
^ Removing, Refer to Sensors and Switches - Brakes and Traction Control, Wheel Speed Sensor, Service and Repair
(Front Wheel Drive (FWD) vehicles)
^ Removing, Refer to Sensors and Switches - Brakes and Traction Control, Wheel Speed Sensor, Service and Repair
(all-wheel-drive vehicles)
15 - Impulse wheel for right and left rear speed sensors
(Figure for Front Wheel Drive (FWD))