2002 ISUZU AXIOM battery

4B2±101
DRIVE LINE CONTROL SYSTEM (TOD)
StepActionYe sNo
11. Turn on the starter switch.
2. Turn off the lighting switch.
Is 0V observed between the EUC terminal 40 and 47?
Go to Step 2
Lighting switch
battery circuit
short. Repair the
circuit.
Go to
Step 4
2Turn lighting switch ªONº.
Is the battery voltage observed between ECU terminal 40 and 47?
Go to Step 3
Wires are broken
in lighting switch
circuit. Repair the
circuit.
Go to
Step 4
3While the lighting switch is pressed on and off, does the
brightness of the indicator change?The phenomenon
is not
reproduced.
Refer to
ªTroubles
intermittently
observedº
The ECU has
failed. Replace
the ECU.
Go to
Step 4
4Check that all the parts are mounted.
Is this step complete?
Verify the repair.Go to Step 4

4B2±109
DRIVE LINE CONTROL SYSTEM (TOD)
StepActionYe sNo
1Do the indicator lamps show the correct status?
Go to Step 2
Examine the
trouble based on
ªTrouble
Diagnosis
Depending on the
Status of TOD
Indicatorº.
2Is any of the trouble codes 28(P1760), 32(P1761) and 33(P1762)
recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 3
3Turn on the starter switch.
Is the battery voltage observed between terminals 14 and 47?
Go to Step 4Go to Step 5
4When the TOD Switch is selected to the 2H position, are the front
axle gears correctly disengaged (and when the left front tire is
jacked up and turned, is the front propeller shaft standstill)?The phenomenon
is not
reproduced.
Refer to
ªTrouble
intermittently
observedº
.
The shift on the
fly system is
failed (refer to
Section 4B1 and
4C
).
5Does the battery voltage maintain the correct level?
Repair the battery
circuit.
Go to
Step 6
Repair the battery
and charging
system.
Go to
Step 6
6Check that all the parts are mounted.
Is this step complete?
Verify the repair.Go to Step 6

DRIVE LINE CONTROL SYSTEM (TOD) 4B2–111
Step Action Yes No
1 Are the brake and ABS systems healthy?
Go to
Step 2
Repair the brake
and ABS. (Refer to
section 5A and 5B)
2 Turn on the star ter switch.
Is the battery voltage observed between terminals 14 and 47?
Go to
Step 3
Repair the
battery system.
Go to
Step 5
3 1. Select the TOD switch to the 2H position.
Does the voltage between terminals 36 and 47 range between
7.5 and 16V (0.12 seconds make a cycle)? Go to
Step 4
The ECU has
failed. Replace
the ECU.
Go to
Step 5
4 1. Turn off the starter switch.
2. Disconnect the connector (C–37).
Is there the continuity between the connector terminal (C–37) 14
and (C–6) 8?The
phenomenon is
not reproduced.
Refer to
“Trouble
intermittently
observed".
Repair the
harness.
Go to Step 5
5 Check that all the par ts are mounted.
Is this step complete? Verify the repair. Go to
Step 5

4B2±113
DRIVE LINE CONTROL SYSTEM (TOD)
StepActionYe sNo
11. Turn on the starter switch.
Is any of the trouble codes 41 (P1741), 42 (P1773), 43 (P1743)
and 55 (P1755) recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 2
2Is any of the trouble codes 13 (P1735), 14 (P1731), 15 (P1736),
16 (P1737), 24 (P1733), and 27 (P1738) recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 3
3Is the trouble code 17 (P1774) recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 4
41. Turn on the starter switch.
2. The car stops, engine speed is less than 1500 rpm, the AT
selector is N position, and select the TOD switch to the 4L
position.
Do the front lamp and rear lamp in the indicator blink?
Go to Step 5
Examine the
trouble based on
ªTrouble
Diagnosis
Depending on the
Status of TOD
Indicatorº.
51. Step on the brake pedal.
Is the transfer changed to the 4L mode?The phenomenon
is not
reproduced.
Refer to
ªTrouble
intermittently
observedº.
Go to Step 6
6When the vehicle is moved forth and back, is the transfer changed
to the 4L mode?The phenomenon
is not
reproduced.
Refer to
ªTrouble
intermittently
observedº.
Go to Step 7
7Does the continuity corresponding to the encoder position
between the terminals comply with the 4L position in the following
table (continuity)?Examine the
trouble based on
ªTrouble
diagnosis
Depending on
The Status of
TOD Indicatorº.
Go to Step 8
81. Step on the brake pedal.
Is the battery voltage observed between the terminal 37 and 47?
Go to Step 10Go to Step 9
91. Turn off the starter switch.
2. Disconnect the ECU connector (C±37) and the brake switch
connector (I±31).
Is there the continuity between the connector terminal (C±37) 15
and (I±31) 4?The brake switch
is abnormal.
Repair or replace
the brake switch.
Go to
Step 13
Repair the
harness.
Go to
Step 13
101. Select the AT selector to the N position.
Is the voltage between the terminals ranged within the following
table (voltage)?
Go to Step 12Go to Step 11
111. Turn off the starter switch.
2. Disconnect the ECU connector (C±37).
3. Disconnect the AT mode switch connector (E±41).
Is there the continuity between the following connector terminals?
(C±37)6 and (E±41)8 (C±37)19 and (E±41)7 (C±37)5 and
(E±41)6
Repair or replace
the AT mode
switch.
Go to
Step 13
Repair the circuit
which has no
continuity.
Go to
Step 13

DRIVE LINE CONTROL SYSTEM (TOD) 4B2±116
StepActionYe sNo
11. Turn on the starter switch.
Is any of the trouble codes 41 (P1741), 42 (P1773), 43 (P1743)
and 55 (P1755) recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 2
2Is any of the trouble codes 13 (P1735), 14 (P1731), 15 (P1736),
16 (P1737), 24 (P1733), and 27 (P1738) recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 3
3Is the trouble code 17 (P1774) recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 4
41. Turn on the starter switch.
2. The car stops, engine speed is less than 1500 rpm, the AT
selector is N position, and select the TOD switch to the TOD
position.
Do the front, rear, and AUTO lamps in the indicator blink?
Go to Step 5
Examine the
trouble based on
ªTrouble
Diagnosis
Depending on the
Status of TOD
Indicatorº.
51. Step on the brake pedal.
Is the transfer changed to the TOD mode?The phenomenon
is not
reproduced.
Refer to
ªTrouble
intermittently
observedº.
Go to Step 6
6When the vehicle is moved forth and back, is the transfer changed
to the TOD mode?The phenomenon
is not
reproduced.
Refer to
ªTrouble
intermittently
observedº.
Go to Step 7
7Is the continuity corresponding to the encoder position between
the terminals ranged within the any case (case 1, 2 and 3) of TOD
position in the following table (continuity)?Examine the
trouble based on
ªTrouble
diagnosis
Depending on
The Status of
TOD Indicatorº.
Go to Step 8
81. Step on the brake pedal.
Is the battery voltage observed between the terminal 37 and 47?
Go to Step 10Go to Step 9
91. Turn off the starter switch.
2. Disconnect the ECU connector (C±37) and the brake switch
connector (I±31).
Is there the continuity between the connector terminal (C±37) 15
and (I±31) 4?The brake switch
is abnormal.
Repair or replace
the brake switch.
Go to
Step 13
Repair the
harness.
Go to
Step 13
101. Select the AT selector to the N position.
Is the voltage between the terminals ranged within the following
table (voltage)?
Go to Step 12Go to Step 11
111. Turn off the starter switch.
2. Disconnect the ECU connector (C±37) and brake switch
connector (I±31).
3. Disconnect the AT mode switch connector (E±41).
Is there the continuity between the following connector terminals?
(C±37)6 and (E±41)8 (C±37)19 and (E±41)7 (C±37)5 and
(E±41)6
Repair or replace
the AT mode
switch.
Go to
Step 13
Repair the circuit
which has no
continuity.
Go to
Step 13

4D2±4
TRANSFER CASE (TOD)
Removal
1. Disconnect the battery ground cable.
2. Remove the transfer protector.
3. Disconnect the rear propeller shaft assembly from the
transfer case.
4. Disconnect the front propeller shaft assembly from
the transfer case.
5. Remove the center exhaust pipe.
6. Disconnect the speedometer sensor harness
connector from the speedometer sensor, and remove
the harness clamp from the connector bracket of the
transfer case.
7. Disconnect the engine harness connector from the
transfer harness connector.
8. Support the transfer case with a transmission jack.
9. Remove the transfer bolts.
10. Remove the transfer case assembly.
Installation
1. Apply grease (Besco L2 or its equivalent) to the input
shaft spline.
260RY00011
2. Install the transfer case assembly to the transmission
assembly.
3. Install the transfer bolts to the specified torque (Refer
to
next page).
Torque: 46 N´m (34 lb ft)
4. Connect the engine harness connector to the transfer
harness connector.
5. Install the breather hose up to bottom of the transfer
case breather and clip them firmly.
6. Securely insert the breather hose into the cutout
portion of the transfer case.
260R200001

4D2±5 TRANSFER CASE (TOD)
7. Install the speedometer harness clamp to the
connector bracket of the transfer case, and then
connect the harness connector to the speedometer
sensor.
261R200008
8. Install the center exhaust pipe.
Torque: 43 N´m (32 lb ft)
9. Connect the front and rear propeller shaft assembly
to the transfer case.
Torque: 63 N´m (46 lb ft)
10. Install the transfer protector.
Torque: 37 N´m (27 lb ft)
11. Connect the battery ground cable.

4D2±8
TRANSFER CASE (TOD)
TOD Control Unit
826R200006
Legend
(1) Bracket
(2) TOD Control Unit
Removal
1. Disconnect the battery ground cable.
2. Disconnect the harness connector from the TOD
control unit.
3. Remove the bracket retaining nuts (3 pieces) and the
bracket with TOD control unit.
4. Remove the TOD control unit from the bracket.
Installation
1. Install the TOD control unit to the bracket.
2. Install the bracket with TOD control unit to the
chassis.
3. Connect the harness connector to the TOD control
unit.
4. Connect the battery ground cable.