1998 OPEL FRONTERA check oil

DIFFERENTIAL (REAR 244mm)
4A2B–11
3. Remove flange nut and washer by using pinion flange
holder 5–8840–0133–0 after raising up its staked
parts completely.
415RW040
4. Remove flange.
5. Remove oil seal.
6. Remove outer bearing by using remover
5–8840–2323–0.
425RY00003
7. Remove collapsible spacer.
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal conditions are
found through inspection.
Check the following parts:
1. Seal surface of the pinion.
2. Cage bore for burns.
Installation
1. Install collapsible spacer, discard the used collapsible
spacer and install a new one.
2. Install outer bearing.
NOTE: Do not drive in, but just temporarily set in the outer
bearing by hand, which should be indirectly pressed in
finally by tightening the flange nut.
3. By using the seal installer 5–8840–2165–0, install a
new oil seal (1) that has grease on seal lip.
425RW050
4. Install flange.
5. Install flange nut and washer. Refer to Differential
Assembly in this section for flange nut reassembly.
NOTE: Discard the used nut and install a new one.

DIFFERENTIAL (REAR 244mm)
4A2B–25
Disassembly
1. Remove bolt.
2. Remove ring gear.
3. Remove lock pin using a small drift.
425RY00002
4. Remove the differential shaft by using a hard metal
rod and a hammer.
425RS043
5. Remove pinion mate gear and thrust washer.
6. Remove side gear and thrust washer.
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal conditions are
found through inspection.
Check the following parts:
Ring gear, pinion gear
Bearing
Side gear, pinion mate gear, differential shaft
Differential cage, carrier
Thrust washer
Oil seal
Ring gear replacement:
1. The ring gear should always be replaced with the
drive pinion as a set.
2. Clean the ring gear threaded holes to remove the
locking argent.
3. Discard used bolts and install new ones.
4. When installing the ring gear, apply LOCTITE 271 or
equivalent to all the threaded area and ha of the
unthreaded area of the bolt.
Torque: 127Nꞏm (13.0kgꞏm/94 lb ft)
425RW033Clearance between the differential pinion and the
pinion shaft measurement.
Standard: 0.07 – 0.13 mm (0.003 – 0.005 in)
Limit: 0.2 mm (0.008 in)
425RY00007

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 gear ratio is 1.000 and the corresponding
driving force is generated. When the transfer shift lever is
set to the 4L position, the reduction gear ratio is 2.480 and
the corresponding driving force is generated.
262RW030
4H and 4L Switch
Detects the shift position of the transfer from the
movement of the transfer lever and outputs signals to the
TOD control unit.
261RW002
Transfer Connector
Transmits the input and output signals of the speed
sensors, electromagnetic coil, and 4H and 4L switche to
the vehicle harness. A waterproof 12-pin type is used.
261RW046
TOD Indicator Lamps (on the instrument
panel)
Inform the following items.
Bulb check
Drive mode
ABS IN status
BRAKE ON status
821RW049

4B2–43 DRIVE LINE CONTROL SYSTEM (TOD)
Diagnostic Trouble Codes
CodeTe c h 2 c o d e
(P code)ItemDiagnosisCheck flow No.
12—Start codeNormal—
13P1735RefShorted GND6
14P1731Front speed sensorInput abnormality (open, sig or com)2
15P1736RefShorted VB6
16P1737Front speed sensorInput abnormality3
21P1716TPSShorted or disconnected wiring, abnormality in
input7
23—ECUCPU abnormality1
24P1733Rear speed sensorInput abnormality (open, sig or com)5
25—CHECK lampShorted14
26—EMC (+)Shorted GND10
27P1738Rear speed sensorInput abnormality4
28P1760ADC (+) & AXLE SWOutput abnormality11
31P1721EMC (+)Shorted or disconnected coil/wiring9
32P1761ADC (+)Shorted or disconnected coil/wiring12
33P1762ADC (+)Shorted GND13
34—D-G MAPInput abnormality8
35—CHECK lampShorted or disconnected wiring14
36—ECUCPU abnormality1
37P1712ECUCPU abnormality1
38P1714ECUCPU abnormality1
TPS : Throttle Position Sensor
EMC : Electromagnetic coil
ADC : Shift on the fly (Axle Dis Connect)
D-G MAP : Discrimination engine type

4B2–59 DRIVE LINE CONTROL SYSTEM (TOD)
Check flowTrouble codePhenomenonStandard
931
(P1721)The electromagnetic coil is broken
or shorted to the battery or GND.—
D04RY00060

DRIVE LINE CONTROL SYSTEM (TOD) 4B2–60
StepActionYe sNo
11. Clear the trouble code.
2. Start the engine
3. Set the TOD mode.
Is there DTC31 (P1721)?
Go to Step 2
Refer to “Trouble
intermittently
observed”.
21. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.
Is the continuity established between terminals (B–67)4 and
(B–67)12?
Go to Step 3Go to Step 5
31. Connect the ECU connector.
2. Start the engine.
3. Set the TOD mode.
Does the voltage between terminals 4 and 20 indicate at least
0.4V?
Go to Step 4Go to Step 6
4Is the battery voltage always observed between terminals 4 and
20?The harness is
short–circuited on
the battery.
Repair the circuit.
Go to
Step 8Go to Step 6
51. Disconnect the A–3 connector.
Is the continuity established between transfer connector
terminals (A–3)8 and (A–3)7?
The harness is
broken. Repair
the circuit.
Go to
Step 8
Replace the
transfer
electromagnetic
coil (solenoid
clutch).
Go to
Step 8
61. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.
Is the resistance between the connector (B–67) terminal 4 and 12
1.0
5.0?
The ECU has
failed. Replace
the ECU
Go to
Step 8Go to Step 7
7Is the resistance between the transfer connector (A–3) terminal 8
and 7 1.0
5.0?The harness is
disconnection or
short to GND.
Repair the circuit.
Go to
Step 8
Replace the
transfer
electromagnetic
coil (solenoid
clutch).
Go to
Step 8
81. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 8

4B2–61 DRIVE LINE CONTROL SYSTEM (TOD)
Check flowTrouble codePhenomenonStandard
1026The electromagnetic coil is short-
circuited to GND.Resistance: 1.0 to 5.0 ohm (at
ordinary temperature)
D04RY00060

DRIVE LINE CONTROL SYSTEM (TOD) 4B2–62
StepActionYe sNo
11. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.
Does the resistance between terminals (B–67)4 and (B–67)12?
indicate 1.0 to 5.0 ohm?
Go to Step 2Go to Step 3
21. Connect the ECU connector.
2. Start the engine.
3. Set the TOD mode.
When the throttle is operated between full close and full open
positions, does the voltage between terminals 4 and 20 indicate
0.1 to 1.0 V?The phenomenon
is not
reproduced.
Refer to
“Troubles
intermittently
observed”.
The ECU has
failed. Replace
the ECU.
Go to Step 4
3Does the resistance between transfer connector terminals (A–3)8
and (A–3)7 indicate 1.0 to 5.0ohm?
The harness is
broken. Repair
the circuit.
Go to Step 4
Replace the
transfer
electromagnetic
coil.
Go to Step 4
41. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 4