2002 ISUZU AXIOM sensor

INTELLIGENT SUSPENSION3F±23
DTC5 Vehicle Speed Sensor Open Circuit or Short
Circuit Description
Output speed information is provided to the control unit by
the vehicle speed sensor. The vehicle speed sensor
produces a pulsing AC voltage. The AC voltage level and
number of pulses increases as the speed of the vehicle
increases. The control unit then converts the pulsing
voltage to vehicle speed.
Diagnostic Aids

Inspect the wiring for poor electrical connections
between the control unit 48 way connector and the
speed sensor connectors. Look for possible bent,
backed out, deformed, or damaged terminals. Check
for weak terminal tension as well.
Also check for a chafed wire that could short to bare
metal or other wiring. Inspect for a broken wire inside
the insulation.

When diagnosing for a possible intermittent short or
open condition, move the wiring harness while
observing test equipment for a change.
DTC5 Vehicle Speed Sensor Open Circuit or Short
StepActionValue(s)Ye sNo
11. Jack up and support the rear axle on the stand.
2. Change the transfer mode to 2WD, using TOD
switch on instrument panel.
3. Shift the transmission lever in a forward position
and rotate the rear wheels.
Does the speedo-meter operate?
ÐGo to Step 2Go to Step 3
21. Open the throttle and rev up engine speed.
2. Using a volt meter, measure the voltage between
the meter B connector I±23 terminals 7 and 16
(GND).
Does the voltage change alternately at the specified
values?
0V and 12VGo to Step 7Go to Step 5
31. Turn off the starter switch and disconnect the
control connectors C±46 and C±44.
2. Check the continuity between the vehicle speed
sensor connector terminal 3 and meter B connector
I±23 terminal 7.
Is there continuity?
ÐGo to Step 4Go to Step 6
41. Check the continuity between the control unit
connector C±46 terminal 1 and control unit
connector C±44 terminal 48.
Is there continuity?
ÐGo to Step 5Go to Step 6
5Repair or replace the vehicle speed sensor.
ÐGo to Step 8Ð
6Repair the circuit between the vehicle speed sensor
connector terminal 3 and the meter B connector I±23
terminal 7 or the circuit between the control unit
connector C±44 terminal 48 and the speed sensor
connector terminal 3.
ÐGo to Step 8Ð

3F±24INTELLIGENT SUSPENSION
DTC5 Vehicle Speed Sensor Open Circuit or Short (Cont'd)
StepNo Ye s Value(s) Action
7Repair the circuit between the connector H±6 terminal
16 and the control unit connector C±44 terminal 48 or
replace the control unit.
ÐGo to Step 8Ð
81. Reconnect all components, ensure all components
are properly mounted.
2. Clear the DTC.
Was this step finished?
Ð
Go to ªBasic
Diagnosis
Flow.º
Go to Step 8
About the vehicle speed sensor connector termainal 3,
Refer to section
Wiring System in Body and Accessories.

INTELLIGENT SUSPENSION3F±27
DTC7 Engine Speed Signal Open Circuit or Short
Circuit Description
PCM (Powertrain Control Module) converts signals from
the crankshaft position sensor into the engine speed
signals (pulse) and sends these to the control unit and
tachometer.
Diagnostic Aids

Inspect the wiring for poor electrical connections at
the control unit connector. Look for possible bent,
backed out, deformed, or damaged terminals. Check
for weak terminal tension as well.
Also check for a chafed wire that could short to bare
metal or other wiring. Inspect for a broken wire inside
the insulation.

When diagnosing for a possible intermittent short or
open condition, move the wiring harness while
observing test equipment for a change.

Check harness routing for a potential short to ground
in circuit BLK/RED.
DTC7 Engine Speed Signal Open Circuit or Short
StepActionValue(s)Ye sNo
1NOTE: Confirm that DTC P0336 or P0337 does not
exist.
If either exists, warning lamps, ªCHECK ENGINEº and
ªCHECK TRANSº are turned on. Repair the engine,
referring to section 6E
Driveability and Emission.
1. Turn on the starter switch.
2. Start the engine.
3. Open the throttle and rev up engine speed.
Does the tachometer operate according to engine
speed?
ÐGo to Step 3Go to Step 2
2Repair the tachometer, referring to section 8D Wiring
System in Body and Accessories
.
ÐGo to Step 6Ð
31. Turn off the starter switch.
2. Check continuity between the control unit connector
C±44 terminal 59 and PCM connector E±34
terminal F7.
Is there continuity ?
ÐGo to Step 4Go to Step 5
4Replace the control unit.
ÐGo to Step 6Ð
5Repair the circuit.
ÐGo to Step 6Ð
61. Reconnect all components, ensure all components
are properly mounted.
2. Clear the DTC.
3. Conduct a test drive.
Has the last test failed or does the current DTC exist?
Ð
Begin diagnosis
again
Go to
Step 1
Repair
verified

3F±36INTELLIGENT SUSPENSION
Rear Shock Absorber
Rear Shock Absorber and Associated Parts
LH
461R100003
Legend
(1) Connector
(2) Clip
(3) Rear Shock Absorber
(4) Bracket
(5) Bolt(6) G-Sensor
(7) Front
(8) Upper
(9) Right
(10) Connector
(11) Gusset

INTELLIGENT SUSPENSION3F±37
Removal
1. Disconnect the battery ground cable.
2. Disconnect the connector (1) from the harness and
remove the connector (1) from the bracket (4).
3. Remove the clip (2).
4. Remove the rear shock absorber (3).
Refer to
Shock Absorber in this section.
5. Disconnect the connector (10) from the harness and
remove the connector (10) from the gusset (11).
6. Remove the 2 bolts (5).
7. Disconnect the G-sensor (6).
Inspection and Repair
Refer to Shock Absorber in this section.
Installation
1. Set the G-sensor on the gusset (11).
2. Install 2 bolts (5) then tighten it to the specified torque.
Torque: 7 N´m (61 lb in)
3. Connect the connector (10) to the harness and insert
the connector (10) to the gusset (11).
4. Install the rear shock absorber (3).
Refer to
Shock Absorber in this section.
5. Connect the connector (1) to the harness and insert
the connector (1) to the bracket (4).
6. Insert the clip (2) to the bracket (4).
7. Connect the battery ground cable.

DIFFERENTIAL (FRONT) 4A1±6
Removal
1. Jack up the vehicle and support it using jack stand.
2. Remove the tire and wheel.
3. Remove the stone guard.
4. Remove the brake caliper fixing bolt and hang the
caliper. Refer to
Disc Brakes in Brake section.
5. Remove the antilock brake system speed sensor.
Refer to
Front Wheel Speed Sensor in Brake section.
6. Remove the hub and disc assembly.
Refer to
Front Hub and Disc in this section.
7. Remove the propeller shaft, refer to
Front Propeller
Shaft
in this section.
8. Loosen the height control arm of the torsion bar, then
remove the torsion bar from lower control arm.
Refer to
Torsion Bar in Suspension section.
9. Remove the suspension crossmember.
10. Remove the lower nut (1) of the stabilizer link.
11. Remove the lower bolt and nut (2) of the shock
absorber.
412RW057
12. Remove the tie-rod end from the knuckle. Refer to
Power Steering Unit in Steering Section.
13. Disconnect the hose of the shift on the fly.
14. Disconnect the actuator connector.
15. Remove the bolts and nuts of the lower control arm
(Frame side), then disconnect the lower control arm
from frame.
16. Disconnect between the right side upper control arm
and the knuckle, then remove the knuckle with lower
control arm.CAUTION: When removing the knuckle, be careful
not to damage the oil seal inside of the knuckle.
410RW008
17. Support the differential case by the jack.
18. Remove the front axle mounting bolts and nuts, lower
the jack slowly. Remove the left side drive shaft end
from the knuckle, then lower the axle assembly from
the vehicle.
CAUTION:
1. Make sure the axle assembly is supported
securely when performing repairs.
2. Do not damage the power steering unit when
performing the repairs.
3. Do not damage the shift±on±the fly hose bracket
when performing the repairs.
Installation
1. Support the differential case with a jack.
2. Jack up the front drive axle assembly, install the left
side drive shaft to the knuckle, then install the mount
bolts and nuts.
CAUTION:
1. Do not damage the power steering unit when
performing the repairs.
2. Do not damage the shift±on±the fly hose bracket
when performing the repairs.
3. When installing the drive shaft to the knuckle, be
careful not to damage the oil seal inside of the
knuckle.

4A1±7 DIFFERENTIAL (FRONT)
3. Tighten the mounting bolts and nuts to the specified
torque.
Torque: 168 N´m (124 lb ft)
412R200004
4. Install the right side knuckle with lower control arm to
the upper control arm.
Refer to
Knuckle in Suspension section.
CAUTION: Carefully insert the drive shaft into the
knuckle, to avoid damaging the oil seal.
5. Align the bolt hole of the lower control arm, then install
the bolts and nuts.
NOTE: Adjust the buffer clearance before tightening the
bolts and nuts of the lower control arm.
6. Install the hose of the shift on the fly.
7. Install the actuator connector of the shift on the fly.
8. Install the tie-rod end of the power steering unit to the
knuckle, tighten the nut to the specified torque.
Torque: 118 N´m (87 lb ft)
9. Install lower bolts and nuts of the shock absorber,
tighten it to the specified torque.
Torque: 93 N´m (69 lb ft)
10. Install lower nuts of the stabilizer link, tighten it to the
specified torque.
11. Install the suspension crossmember.
12. Install the torsion bar.
Refer to
Torsion Bar in Suspension section.
13. Install the front propeller shaft.
Refer to
Front Propeller Shaft in this section.
14. Install the hub and disc assembly and adjust the
bearing preload.
Refer to
Front Hub and Disc in this section.
15. Install the wheel speed sensor of the antilock brake
system.
16. Install the brake caliper. Tighten the bolt of the caliper
bracket to the specified torque.
Torque: 50 N´m (37 lb ft)
17. Install the stone guard.18. Install the tire and wheel.
19. Lower the vehicle, adjust the trim height.
Refer to
Trim Height Adjustment in Steering section.
20. Tighten the bolts and nuts of the lower control arm to
the specified torque.
Refer to
Lower Control Arm in Suspension section.

4A2±6DIFFERNTIAL (REAR)
9. Loosen the brake tube flare nut, remove the clip and
take out the brake tube.
350RW020
10. Remove the shock absorber.
11. Remove the stabilizer linkage mounting bolts and
nuts (2) from the frame side.
350RW024
12. Remove the lateral rod fixing bolt and nut from the
frame.
13. Remove the upper link mounting bolt and nut (3) from
the axle housing.
460RW015
14. Remove the lower link fixing bolt and nut (4) from the
axle housing.
460RW016
15. Jack down and remove the coil spring and insulator.
16. Axle housing assembly can be separated from the
vehicle upon completion of steps 1 ± 15.
17. Remove the brake caliper fixing bolt, loosen the flare
nut, release the clip and take out the brake caliper
together with the flexible hose.
18. Remove brake disc.
19. Remove antilock brake system speed sensor fixing
bolt and the clip and bracket on the axle housing.
20. Remove the brake pipe clip and fixing bolt on the axle
housing and take out the brake pipe.