Opel Frontera UE. Manual - part 717

4D–40

TRANSFER CASE

Special Tools

ILLUSTRATION

PART NO.

PART NAME

5–8840–0015–0

Bearing

remover/installer

5–8840–2279–0

Transfer case oil seal

installer

5–8840–2156–0

Mainshaft nut wrench

5–8840–2159–0

Rear output shaft and

bearing installer

5–8840–2293–0

Punch; end nut

5–8840–2281–0

Front output shaft oil

seal installer

ILLUSTRATION

PART NO.

PART NAME

5–8840–2292–0

Rear oil seal installer

5–8840–2192–1

Bearing installer adapter

5–8840–0133–0

Flange holder

5–8840–2155–0

Mainshaft end bearing

remover

5–8840–2027–0

Puller

5–8840–0007–0

Driver handle

TRANSFER CASE

4D–41

ILLUSTRATION

PART NO.

PART NAME

5–8840–2193–0

Transfer case oil seal

installer

BRAKE CONTROL SYSTEM

5A–1

BRAKES

CONTENTS

Brake Control System.................................... 5A - 1
Anti-lock Brake System.................................. 5B - 1
Power-assisted Brake System....................... 5C - 1
Parking Brake System ................................... 5D - 1

BRAKE CONTROL SYSTEM

CONTENTS

Service Precaution......................................... 5A - 2
General Description ....................................... 5A - 3

Functional Description  ............................... 5A - 4
System Components  ................................. 5A - 10
Electronic Hydraulic Control Unit (EHCU)  . 5A - 10
ABS Warning Light  .................................... 5A - 10
Wheel Speed Sensor ................................. 5A - 10
G-Sensor  ................................................... 5A - 10
Normal and Anti-lock Braking  .................... 5A - 10
Brake Pedal Travel  .................................... 5A - 10
Acronyms and Abbreviations  ..................... 5A - 11

General Diagnosis ......................................... 5A - 11

General Information  ................................... 5A - 11
ABS Service Precautions  .......................... 5A - 11
Computer System Service Precautions  ..... 5A - 11
General Service Precautions  ..................... 5A - 11
Note on Intermittents  ................................. 5A - 12
Test Driving ABS Complaint Vehicles  ....... 5A - 12
“ABS" Warning Light  .................................. 5A - 12
Normal Operation  ...................................... 5A - 12
Tech 2 Scan Tool  ...................................... 5A - 13
DATA LIST  ................................................ 5A - 16
ACTUATOR TEST ..................................... 5A - 17
Tech 2 Service Bleed  ................................ 5A - 21
Basic Diagnostic Flow Chart ...................... 5A - 23
Basic Inspection Procedure  ....................... 5A - 23

EHCU Connector Pin-out Checks.................. 5A - 24

Circuit Diagram  .......................................... 5A - 25
Connector List  ........................................... 5A - 27
Part Location  ............................................. 5A - 29

Symptom Diagnosis....................................... 5A - 30

Chart A-1 ABS Works Frequently But 

Vehicle Does Not Decelerate ................... 5A - 30

Chart TA-1 ABS Works Frequently But 

Vehicle Does Not Decelerate 
(Use TECH 2)  .......................................... 5A - 31

Chart A-2 Uneven Braking Occurs 

While ABS Works  .................................... 5A - 31

Chart TA-2 Uneven Braking Occurs 

While ABS Works (Use TECH 2)  ............. 5A - 31

Chart A-3, TA-3  The Wheels Are Locked  . 5A - 32

Chart A-4 Brake Pedal Feed Is Abnormal  . 5A - 32
Chart A-5, TA-5 Braking Sound 

(From EHCU) Is Heard While Not Braking  5A - 33

Diagnosis By “ABS"  Warning Light

Illumination Pattern ...................................... 5A - 36

Diagnostic Trouble Codes (DTCs) ............. 5A - 37
Chart B-1 With the key in the ON position

(Before starting the engine).   Warning 
light (W/L) is not activated. ....................... 5A - 39

Chart B-2 CPU Error (DTC 14 (Flash out) /

C0271, C0272, C0273, C0284 (Serial 
communications)) ..................................... 5A - 39

Chart B-3 Low or High Ignition Voltage

(DTC 15 (Flash out) / C0277, 0278 (Serial
communications)) ..................................... 5A - 40

Chart B-4 Excessive Dump Time 

(DTC 17 (Flash out) / C0269 (Serial 
communications)) ..................................... 5A - 40

Chart B-5 Excessive Isolation Time 

(DTC 18 (Flash out) / C0274 (Serial 
communications)) ..................................... 5A - 40

Chart B-6 G-Sensor Output Failure 

(DTC 21 (Flash out) / C0276 (Serial 
communications)) ..................................... 5A - 41

Chart B-7 Brake Switch Failure

(DTC 22 (Flash out) / C0281 (Serial 
communications)) ..................................... 5A - 41

Chart B-8 2WD Controller in 4WD Vehicle 

Controller (DTC 13 (Flash out) /  C0285 
(Serial communications)), 4WD State
Input Signal Failure (DTC 24 (Flash out) / 
C0282 (Serial communications)) .............. 5A - 42

Chart B-9 Pump Motor Failure (DTC 32

(Flash out) / C0267, C0268 (Serial 
communications)) ..................................... 5A - 42

Chart B-10 EHCU Valve Relay Failure

(DTC 35 (Flash out) / C0265, C0266 (Serial 
communications)) ..................................... 5A - 43

Chart B-11 FL Isolation Solenoid Coil

Failure (DTC 41 (Flash out) / C0245, 
C0247 (Serial

SECTION

5A–2

BRAKE CONTROL SYSTEM

communications))  .................................... 5A - 43

Chart B-12 FL Dump Solenoid Coil

Failure (DTC 42 (Flash out) / C0246, 
C0248 (Serial communications))  ............. 5A - 43

Chart B-13 FR Isolation Solenoid Coil 

Failure (DTC 43 (Flash out) / 
C0241, C0243 (Serial communications))  . 5A - 44

Chart B-14 FR Dump Solenoid Coil

Failure (DTC 44(Flash out) /
C0242, C0244 (Serial communications))  . 5A - 44

Chart B-15 Rear Isolation Solenoid 

Coil Failure (DTC 45 (Flash out) / C0251, 
C0253 (Serial communications))  ............. 5A - 44

Chart B-16 Rear Dump Solenoid Coil 

Failure (DTC 46 (Flash out) /
C0252, C0254 (Serial communications))  . 5A - 45

Chart B-17 FL Speed Sensor Open or 

Shorted (DTC 51 (Flash out) / C0225 (Serial
communications))  .................................... 5A - 45

Chart B-18 FR Speed Sensor Open or 

Shorted (DTC 52 (Flash out) / C0221 (Serial
communications))  .................................... 5A - 46

Chart B-19 Rear Speed Sensor Open or 

Shorted (DTC 53 (Flash out) / C0235 (Serial
communications))  .................................... 5A - 47

Chart B-20 FL Speed Sensor Missing 

(DTC 61 (Flash out) / C0226, C0227 (Serial 
communications)) ..................................... 5A - 48

Chart B-21 FR Speed Sensor Missing 

(DTC 62 (Flash out) / C0222, C0223 (Serial 
communications)) ..................................... 5A - 49

Chart B-22 Rear Speed Sensor Missing

(DTC 63 (Flash out) / C0236, C0237 (Serial 
communications))......................................  5A - 50

Chart B-23 Simultaneous Drop-out of 

Front Speed Sensor Signal (DTC 64
(Flash out) / C0229 (Serial 
communications)) ..................................... 5A - 51

Chart B-24 Wheel Speed Input 

Abnormality (DTC 65 (Flash out) / 
C0238 (Serial communications)) .............. 5A - 52

Chart C-1-1 FL Sensor Output Inspection

Procedure ................................................ 5A - 53

Chart C-1-2 FR Sensor Output Inspection 

Procedure ................................................ 5A - 54

Chart C-1-3 Rear Sensor Output Inspection 

Procedure ................................................ 5A - 55

Chart TC-1 Sensor Output Inspection 

Procedure ................................................ 5A - 55

Service Precaution

WARNING:  THIS VEHICLE HAS 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.