1998 OPEL FRONTERA Workshop Manual

Page 4089 of 6000

OPEL FRONTERA 1998  Workshop Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2–6
High-Low Planetary Gear Set
Establishes an auxiliary transmission mechanism.  When
the transfer shift lever is set to the 2H or TOD position, the
reduction  gea

Page 4090 of 6000

OPEL FRONTERA 1998  Workshop Manual 4B2–7 DRIVE LINE CONTROL SYSTEM (TOD)
Check Lamp
Inform the following items.
Bulb check
Fail (fail alarm)
Trouble code
Diesel/gasoline MAP
821RW078
TOD ECU
This control unit is mounted to the front

Page 4091 of 6000

OPEL FRONTERA 1998  Workshop Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2–8
Functions of Indicator Lamp
TOD Indicator Lamps
C04RY00014
Indication During Transition of Transfer Lever
When the 4WD AUTO SW is selected or the transfer lever

Page 4092 of 6000

OPEL FRONTERA 1998  Workshop Manual 4B2–9 DRIVE LINE CONTROL SYSTEM (TOD)
C07RW061
Bulb Check
When the starter switch is turned on, the TOD indicator
lamps go on as shown below.NOTE: Once the starter switch is turned on, all the TOD
i

Page 4093 of 6000

OPEL FRONTERA 1998  Workshop Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2–10
Simplified checking method of ABS IN and BRAKE ON signals:
In the event that any of the signal inputs listed below are
observed  while  the  self-diagnostic  c

Page 4094 of 6000

OPEL FRONTERA 1998  Workshop Manual 4B2–11 DRIVE LINE CONTROL SYSTEM (TOD)
The CHECK lamp also has the following functions.
D-G  MAP  recognition  and  display  (The  control  unit
displays  what  type  of  vehicle,  diesel  or  gasol

Page 4095 of 6000

OPEL FRONTERA 1998  Workshop Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2–12
C04RY00011
If  the  WOT  timing  check  lamp  is  off,  the  subsequent
timing  will  display  immediately  after  the  WOT  timing
check lamp turns on.
If the

Page 4096 of 6000

OPEL FRONTERA 1998  Workshop Manual 4B2–13 DRIVE LINE CONTROL SYSTEM (TOD)
Diagnosis
General Information Diagnosis
The troubles on TOD are classified into the group that can
be  identified  by  the  lighting  status  of  the  TOD  ind