Opel Frontera UBS. Service manual — part 212
5A–61
BRAKE CONTROL SYSTEM
Chart TC-2 Transmission Input Inspection Procedure (Use TECH 2)
Step
Action
Yes
No
1
1. Connect TECH 2.
2. Select Data List.
Is this vehicle an A/T model ?
Go to Step 2
Go to Step 4
2
Is “Off-Road Switch(Transmission Input): Active” when the shift
lever is the L and R?
Go to Step 3
Go to Step 6
3
Is “Off-Road Switch(Transmission Input): Inactive” when the shift
lever is other than the L and R?
Go to Step 7
Go to Step 6
4
Is “Off-Road Switch(Transmission Input): Active” when the shift
lever is in 1, 2 and R?
Go to Step 5
Go to Step 6
5
Is “Off-Road Switch(Transmission Input): Inactive” when the shift
lever is other than the 1, 2 and R?
Go to Step 7
Go to Step 6
6
1. Abnormal T/M SW, inhibitor SW, or harness.
2. Repair T/M SW, inhibitor SW, or harness.
Is the T/M SW, inhibitor SW, or harness repaired?
Go to Step 7
Go to Step 6
7
Reconnect all components, ensure all components are properly
mounted.
Was this step finished?
Repeat the “Basic
diagnostic flow
chart.”
Go to Step 7
5A–62
BRAKE CONTROL SYSTEM
Special Tools
ILLUSTRATION
TOOL NO.
TOOL NAME
5–8840–0385–0
(J–35616)
Connector test adapter
kit
5–8840–0366–0
(J–39200)
High impedance
multimeter
(1) PCMCIA Card
(2) SAE 16/19 Adapter
(3) DLC Cable
(4) Tech–2
5B–1
ANTI–LOCK BRAKE SYSTEM
BRAKES
ANTI-LOCK BRAKE SYSTEM
CONTENTS
Service Precaution
5B–1
. . . . . . . . . . . . . . . . . . . . . .
Electronic Hydraulic Control Unit
5B–2
. . . . . . . . . .
Electronic Hydraulic Control Unit and
Associated Parts
5B–2
. . . . . . . . . . . . . . . . . . . . . .
Removal
5B–2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
5B–2
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-Sensor
5B–3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal
5B–3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair
5B–3
. . . . . . . . . . . . . . . . . .
Installation
5B–3
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Wheel Speed Sensor
5B–4
. . . . . . . . . . . . . . .
Front Wheel Speed Sensor and
Associated Parts
5B–4
. . . . . . . . . . . . . . . . . . . . . .
Removal
5B–4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair
5B–5
. . . . . . . . . . . . . . . . . .
Installation
5B–5
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wheel Speed Sensor
5B–6
. . . . . . . . . . . . . . .
Rear Wheel Speed Sensor and
Associated Parts
5B–6
. . . . . . . . . . . . . . . . . . . . . .
Removal
5B–6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair
5B–6
. . . . . . . . . . . . . . . . . .
Installation
5B–6
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM(SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
CAUTION: Replace all components included in
repair kits used to service this system. Lubricate
rubber parts with clean, fresh brake fluid to ease
assembly. Do not use shop air with in–line
lubricators on brake parts, as damage to rubber
components may result. If any hydraulic component
is removed or brake line disconnected, it may be
necessary to bleed part or all of the brake system.
NOTE: The use of rubber hoses or parts other than those
furnished specifically for the Anti–lock Brake System may
lead to functional problems requiring major overhaul.
5B–2
ANTI–LOCK BRAKE SYSTEM
Electronic Hydraulic Control Unit
Electronic Hydraulic Control Unit and Associated Parts
350RW013
Legend
(1) Connector
(2) Hydraulic Unit ASM
(3) Bolts
(4) Nut
(5) Bolt
Removal
1. Remove battery ASM.
2. Remove harness connector.
3. Remove EHCU fixing nuts.
4. Remove brake pipes.
D
After disconnecting brake pipe, cap or tape the
openings of the brake pipe to prevent the entry of
foreign matter.
5. Remove hydraulic unit fixing nuts.
Installation
To install, follow the removal steps in the reverse order,
noting the following points:
Torque
Hydraulic unit fixing nuts : 22 N·m (2.2kg·m/16
lb ft)
Ground cable : 14 N·m (1.4kg·m/10 lb ft)
Brake pipe (joint bolts) : 16 N·m (1.6kg·m/12
lb ft)
D
After installing the hydraulic unit, bleed brakes
completely. Refer to Servicing in Power Assisted
Brake System section.
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