Brake fluid ISUZU AXIOM 2002 Service Manual PDF

7A1±24
TRANSMISSION CONTROL SYSTEM (4L30±E)
Diagnostic Trouble Code (DTC)
Identification
DTC
NUMBERDTC NAMEDTC TYPEMIL ªCHECK
ENGINEºªCHECK
TRANSº
P0218Transmission Fluid Over TemperatureD
P0705Transmission Range Switch (Mode Switch) Illegal
PositionD
P0706Transmission Range Switch (Mode Switch)
PerformanceD
P0711Transmission Fluid Temperature (TFT) Sensor
PerformanceD
P0712Transmission Fluid Temperature (TFT) Sensor
Circuit Low InputD
P0713Transmission Fluid Temperature (TFT) Sensor
Circuit High InputD
P0719Brake Switch Circuit Low (Stuck On)D
P0722Automatic Transmission Output Speed Sensor
(OSS) Low InputBONFlash
P0723Automatic Transmission Output Speed Sensor
(OSS) IntermittentBONFlash
P0724Brake Switch Circuit High (Stuck Off)D
P0730Gear Error Without Input SpeedCFlash
P0742Torque Converter Clutch (TCC) System Stuck OnBONFlash
P0748Pressure Control Solenoid (PCS) (Force Motor)
Circuit ElectricalCFlash
P0751Shift Solenoid A Performance (Stuck Off)BONFlash
P0752Shift Solenoid A Performance (Stuck On)BONFlash
P0753Shift Solenoid A ElectricalBONFlash
P0756Shift Solenoid B Performance (Stuck Off)BONFlash
P0757Shift Solenoid B Performance (Stuck On)BONFlash
P0758Shift Solenoid B ElectricalBONFlash
P1850Brake Band Apply Solenoid MalfunctionD
P1860TCC Solenoid ElectricalBONFlash
P1870Transmission Component Slipping (TCC Stuck
Off)BONFlash
DTC TYPEDEFINITION
BEmission related, turn on MIL (Check Engine) and flashing Check Trans after 2 consecutive trips
(Removal to confirmed)
CNon±emission related, flashing Check Trans on 1st failure
DNon±emission related, no lamps

TRANSMISSION CONTROL SYSTEM (4L30±E)7A1±57
Diagnostic Aids

If the TCC is mechanically stuck ªonº with the parking
brake applied and any gear range selected, the TCC
fluid will mechanically apply the TCC, possibly
causing an engine stall.
Test Description
The number below refers to the step number on the
diagnostic chart:
3. This test checks the mechanical state of the TCC.
(When the PCM commands the TCC solenoid ªoffº,
the slip speed should increase).
DTC P0742 Torque Converter Clutch (TCC) System Stuck On
StepActionYe sNo
1Were you sent here from the ªPowertrain On±Board Diagnostic
(OBD) System Checkº?
Go to Step 2
Go to OBD
System Check
Refer to
Driveability and
Emissions in
Engine section
21. Install the scan tool.
2. With the engine ªoffº, turn the ignition switch ªonº.
NOTE: Before clearing DTC(s), use the scan tool to record ªFreeze
Frameº and ªFailure Recordsº for reference, as data will be lost
when the ªClear Infoº function is used.
3. Record the DTC ªFreeze Frameº and ªFailure Recordsº.
4. Using the scan tool, verify the ªTP Sensorº operation.
Are the ªTP Sensorº values within 0.6 ± 5.0 volts?
Go to Step 3
Go to Diagnostic
Aids
3Drive the vehicle in the D4 drive range in fourth gear under steady
acceleration, with a TP angle greater than 20%.
Does the scan tool display ªTCC Slip Speedº between ±30 and
+30 rpm, while the displayed TCC solenoid state is ªoffº?
Go to Step 4
Go to Diagnostic
Aids
4The TCC is mechanically stuck ªonº. Check the following items:

Clogged exhaust orifice in the TCC solenoid.

Converter clutch apply valve stuck in the apply position.

Misaligned or damaged valve body gasket.

Restricted release passage.
Was a problem found and corrected?
Go to Step 5Ð
51. After the repair is complete, use the scan tool to select ªDTCº,
then ªClear Infoº function and ensure the following conditions
are met:
TCC slip speed must be between 200 and 2,500 rpm for 4
seconds.
2. Review the scan tool ªDTC Infoº.
Has the last test failed or is the current DTC displayed?
Begin diagnosis
again
Go to
Step 1
Repair verified
Exit DTC table

TRANSMISSION CONTROL SYSTEM (4L30±E)7A1±75
DTC P1850 Brake Band Apply Solenoid Malfunction
D07R200010
Circuit Description

The brake band apply solenoid is a normally open
solenoid which controls the flow of fluid for brake band
application. The Powertrain Control Module (PCM)
uses Pulse Width Modulation (PWM) and changes
the duty cycle to control the solenoid. The PCM turns
the solenoid on (energized) and off (deenergized) at a
constant frequency. The length of time the solenoid is
energized during each on/off cycle is called the pulse
width. By varying or ªmodulatingº the pulse width, the
solenoid output pressure is changed. Since the
solenoid is normally open, increasing the pulse width
increases the duty cycle and decreases the output
pressure. PWM control provides smooth band
application without an accumulator. The band is only
applied in first and second gears.

In the event of an electrical failure (open), the
solenoid regulates at the maximum oil flow (0% duty
cycle).

The solenoid is activated by a current. This current is
produced by applying a voltage to one side (the High
side) and a ground to the other side (Low side).

The High Side Driver (HSD) is a circuit of the PCM
that acts as a switch between the solenoids and the
supply voltage. The High side of the solenoid is
permanently supplied with voltage. When the ignition
is off, the HSD is turned off.This DTC detects a continuous open or short to ground in
the brake band apply solenoid circuit or the brake band
apply solenoid. This is a type ªDº DTC.
Conditions For Setting The DTC

Battery voltage is between 10 and 16 volts.

Ignition is ªonº, Engine ªrunº.

The PCM commands the solenoid ªonº and the
voltage remains high (B+), or the PCM commands
the solenoid ªoffº and the voltage remains low (zero
volts).

All conditions met in 1.34 ~ 1.56 seconds.
Action Taken When The DTC Sets

Inhibit brake band apply solenoid.

The PCM will not illuminate the Malfunction Indicator
Lamp (MIL).
Conditions For Clearing The DTC

The DTC can be cleared from the PCM history by
using a scan tool.

The DTC will be cleared from history when the vehicle
has achieved 40 warmup cycles without a failure
reported.

The PCM will cancel the DTC default actions when
the fault no longer exists and the ignition is cycled ªoffº
long enough to power down the PCM.

METER AND GAUGE8E±1
AXIOM
BODY AND ACCESSORIES
METER AND GAUGE
CONTENTS
Service Precaution 8E±1. . . . . . . . . . . . . . . . . . . . . .
General Description 8E±1. . . . . . . . . . . . . . . . . . . . .
Meter Assembly 8E±2. . . . . . . . . . . . . . . . . . . . . . . . .
General Description 8E±2. . . . . . . . . . . . . . . . . . . . .
Layout for Meters/Gauges, Warning Lights,
Indicator Lights and Illumination Lights 8E±2. . .
Table for Meter/Gauge Connector Terminal
Connections 8E±4. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E±6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Light Bulb and Indicator Light Bulb 8E±6. Removal 8E±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E±6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
A/T Shift Indicator Light Bulb 8E±7. . . . . . . . . . . . . .
Removal 8E±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E±8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle Speed Sensor 8E±9. . . . . . . . . . . . . . . . . . .
Removal 8E±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E±9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank Unit 8E±9. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 8E±10. . . . . . . . . . . . .
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.
General Description
The circuit consists of the starter switch, meter assembly,
vehicle speed sensor, transmission switch, lighting
switch, turn signal switch, thermo unit, oil pressure unit,
Powertrain Control Module (PCM), fuel tank unit, 4WD
switch, oil pressure switch, parking brake switch, brake
fluid switch, seat belt switch, illumination controller, meter
and ambient sensor.