display ISUZU KB P190 2007 Workshop Repair Manual
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Page 4310 of 6020

7A2-26 TRANSMISSION CONTROL SYSTEM (JR405E)
Low & Reverse Brake Pressure Switch
This parameter displays the input state of the low &
reverse brake transmission fluid pressure (TFP) switch
to the TCM. When the low & reverse brake fluid
pressure is generated, the scan tool displays On.
2-4 Brake Solenoid Command
This parameter displays the 2-4 brake solenoid valve
control duty ratio based on the command from the
TCM. The scan tool will display a lower percentage
when the 2-4 brake is controlled to engage (fluid
pressure is applied to the 2-4 brake hydraulic circuits).
The scan tool will display higher percentage when the
2-4 brake is controlled to disengage (fluid pressure is
drained from the 2-4 brake hydraulic circuits).
2-4 Brake Pressure Switch
This parameter displays the input state of the 2-4 brake
transmission fluid pressure (TFP) switch to the TCM.
When the 2-4 brake fluid pressure is generated, the
scan tool displays On.
High Clutch Solenoid Command
This parameter displays the high clutch solenoid valve
control duty ratio based on the command from the
TCM. The scan tool will display a lower percentage
when the high clutch is controlled to engage (fluid
pressure is applied to the high clutch hydraulic circuits).
The scan tool will display higher percentage when the
high clutch is controlled to disengage (fluid pressure is
drained from the high clutch hydraulic circuits).
High Clutch Pressure Switch
This parameter displays the input state of the high
clutch transmission fluid pressure (TFP) switch to the
TCM. When the high clutch fluid pressure is generated,
the scan tool displays On.
Low Clutch Solenoid Command
This parameter displays the low clutch solenoid valve
control duty ratio based on the command from the
TCM. The scan tool will display a lower percentage
when the low clutch is controlled to engage (fluid
pressure is applied to the low clutch hydraulic circuits).
The scan tool will display higher percentage when the
low clutch is controlled to disengage (fluid pressure is
drained from the low clutch hydraulic circuits).
TCC Solenoid (Torque Converter Clutch)
This parameter displays the torque converter clutch
(TCC) control duty ratio based on the command from
the TCM. The scan tool will display a lower percentage
when the TCC is controlled to disengage (fluid
pressure is drained from the TCC release hydraulic
circuits). The scan tool will display higher percentage
when the TCC is controlled to engage (fluid pressure is
applied to the TCC apply hydraulic circuits). Transmission Fluid Temperature
This parameter displays the temperature of the
automatic transmission fluid (ATF) temperature as
calculated by the TCM using the signal from the
transmission fluid temperature (TFT) sensor. The scan
tool will display a low temperature when the signal
voltage is high, and a high temperature when the signal
voltage is low.
Transmission Oil Temperature Lamp
This parameter displays the commanded state of the
transmission oil temperature lamp control circuit. The
lamp should be On when the scan tool indicates
command On.
TCM Status Temp. (Temperature Transmission
Control Module)
This parameter displays the commanded state of the
high temperature mode shift map. On indicates the
transmission fluid temperature is high and the high
temperature mode is selected to prevent an
overheating.
4 Wheel Drive Low
This parameter displays the input state of the 4WD low
gear signal from the transfer case control module
(TCCM). When the 4L mode is selected, the scan tool
displays On.
TCM Status Transfer (Transmission Control
Module)
This parameter displays the commanded state of the
shift map that is based on the transfer case position.
High indicates the high mode (2H or 4H) is inputted
from the transfer case control module (TCCM). Low
indicates the low mode (4L) is inputted from the TCCM.
TCM Status Down Slope (Transmission Control
Module)
This parameter displays the commanded state of the
down slope mode shift map. On indicates the down
slope mode is selected under certain driving conditions.
TCM Status Up Slope (Transmission Control
Module)
This parameter displays the commanded state of the
up slope mode shift map. On indicates the up slope
mode is selected under certin driving conditions.
3rd Start Switch
This parameter displays the input state of the 3rd start
switch to the TCM. When the switch is pressed, the
scan tool displays On.
3rd Start Lamp
This parameter displays the commanded state of the
3rd start lamp control circuit. The lamp should be On
when the scan tool indicates command On.
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Page 4311 of 6020

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-27
Power Drive Switch
This parameter displays the input state of the power
drive switch to the TCM. When the switch is pressed,
the scan tool displays On.
Power Drive Lamp
This parameter displays the commanded state of the
power drive lamp control circuit. The lamp should be
On when the scan tool indicates command On.
Brake Pedal Switch
This parameter displays the input state of the brake
pedal switch to the TCM. When the pedal is depressed,
scan tool displays On. Diagnostic Switch
This parameter displays the input state of the
diagnostic request switch to the TCM. When the data
link connector (DLC) terminal 11 is pulled low, the
check trans lamp blinks to indicate flash code.
Check Trans Lamp
This parameter displays the commanded state of the
check trans lamp control circuit. The lamp should be
On when the scan tool indicates command On.
Scan Tool Output Controls
Scan Tool
Output Control Descriptions
Lamp control Power Lamp Te s tThe purpose of this test is for checking whether the power drive lamp is operating when
commanded ON. Faulty circuit(s) or an open circuit could be considered when not
operating when commanded ON.
Lamp control 3rd Start Lamp Te s t The purpose of this test is for checking whether the 3rd start lamp is operating when
commanded ON. Faulty circuit(s) or an open circuit could be considered when not
operating when commanded ON.
Lamp control AT Oil Temperature
Lamp Test The purpose of this test is for checking whether the AT oil temperature lamp is operating
when commanded ON. Faulty circuit(s) or an open circuit could be considered when not
operating when commanded ON.
Lamp control Check Light Te s t The purpose of this test is for checking whether the check trans lamp is operating when
commanded ON. Faulty circuit(s) or an open circuit could be considered when not
operating when commanded ON.
Solenoid valve control Low & Reverse
Brake Solenoid The purpose of this test is for checking whether the low & reverse brake solenoid valve is
operating when commanded ON. Faulty circuit(s) or a faulty solenoid valve could be
considered if not energizing when commanded ON.
Solenoid valve control 2-4 Brake
Solenoid Test The purpose of this test is for checking whether the 2-4 brake solenoid valve is operating
when commanded ON. Faulty circuit(s) or a faulty solenoid valve could be considered if
not energizing when commanded ON.
Solenoid valve control High Clutch
Solenoid Test The purpose of this test is for checking whether the high clutch solenoid valve is operating
when commanded ON. Faulty circuit(s) or a faulty solenoid valve could be considered if
not energizing when commanded ON.
Solenoid valve control Low Clutch
Solenoid Test The purpose of this test is for checking whether the low clutch solenoid valve is operating
when commanded ON. Faulty circuit(s) or a faulty solenoid valve could be considered if
not energizing when commanded ON.
Solenoid valve control Pressure
Control
Solenoid (PCS) The purpose of this test is for checking whether the pressure control (PC) solenoid valve is
operating when commanded ON. Faulty circuit(s) or a faulty solenoid valve could be
considered if not energizing when commanded ON.
Solenoid valve control TCC Solenoid
Te s t The purpose of this test is for checking whether the torque converter clutch (TCC) solenoid
valve is operating when commanded ON. Faulty circuit(s) or a faulty solenoid valve could
be considered if not energizing when commanded ON.
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Page 4334 of 6020

7A2-50 TRANSMISSION CONTROL SYSTEM (JR405E)
DTC P0727 (Flash Code 13)
Circuit Description
The engine speed signal to the TCM is sent from the
engine control module (ECM) via a signal circuit based
on inputs from the crankshaft position (CKP) sensor
and camshaft position (CMP) sensor. If the TCM
detects no engine speed signal from the ECM during
the vehicle running, this DTC will set.
Condition for Running the DTC • The ignition switch is ON.
• The vehicle speed is more than 40 km/h (24 MPH).
Condition for Setting the DTC • The TCM detects that the engine speed signal pulses from the ECM are not being received for 2
seconds. Action Taken When the DTC Sets
• The TCM blinks the Check Trans lamp when the diagnostic runs and fails.
• The TCM inhibits lock up control.
Condition for Clearing the DTC • The TCM turns OFF the Check Trans lamp when the diagnostic runs and does not fail.
• A current DTC clears when the diagnostic runs and does not fail.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Schematic Reference: Transmission Controls
Schematics
Connector End View Reference: Transmission
Controls Connector End Views or TCM Connector End
Views
Circuit/ System Testing DTC P0727
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Transmission Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Transmission Controls
2 1. Install a scan tool.
2. Turn OFF the ignition for 30 seconds.
3. Start the engine. If the engine does not start, crank over the engine for 10 seconds.
4. Monitor the ENGINE DTC Information with a scan tool.
Is DTC P0335, P0336, P0340 or P0341 set? —
Go to Applicable DTC in engine
control section Go to Step 3
3 Observe the Engine Speed parameter in the
transmission data display with a scan tool.
Does the scan tool indicate correct engine speed? —
Go to Diagnostic
Aids Go to Step 4
4 1. Turn OFF the ignition.
2. Disconnect the engine control module (ECM) harness connector.
3. Turn ON the ignition, with the engine OFF.
4. Intermittently jump the signal circuit (pin 33 of C-58) with a test lamp that is connected to a
known good ground while observing the
Engine Speed parameter with a scan tool.
Does the scan tool indicate any engine speed when
the circuit is intermittently pulled to ground? —
Go to Step 7 Go to Step 5
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Page 4337 of 6020

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-53
41. Inspect all of the circuits going to the input
shaft speed (ISS) sensor and the output shaft
speed (OSS) sensor for the following
conditions:
• Routed too closely to fuel injection wiring or components
• Routed too closely to after-market add- on electrical equipment
• Routed too closely to solenoids and relays
2. If you find incorrect routing, correct the harness routing.
Did you find and correct the condition? —
Go to Step 13 Go to Step 5
5 1. Disconnect the ISS sensor and the OSS
sensor harness connector.
2. Inspect for an intermittent, for poor connections and corrosion at the harness
connector of the ISS sensor (pins 1, 2 and 3 of
E-31) and the OSS sensor (pins 1,2 and 3 of
E-30).
3. Disconnect the TCM harness connector.
4. Inspect for an intermittent, for poor connections and corrosion at the harness
connector of the TCM (pins 3 and 13 of C-95).
5. Repair the connection(s) as necessary.
Did you find and correct the condition? —
Go to Step 13 Go to Step 6
6 1. Inspect the ISS sensor and the OSS sensor
for the following conditions:
• Physical damage of sensor
• Loose or improper installation of sensor
• Excessive air gap
• Foreign material passing between ISS sensor and reverse & high clutch drum
• Foreign material passing between OSS sensor and parking gear
• Physical damage of reverse & high clutch drum or parking gear
2. Repair or replace as necessary.
Did you find and correct the condition? —
Go to Step 13 Go to Step 7
7 1. Place the selector lever in D range.
2. Observe the Low & Reverse Brake Pressure Switch, 2-4 Brake Pressure Switch and High
Clutch Pressure Switch parameter with a scan
tool. Refer to Clutch, Brake, Solenoid and
Pressure Switch Logic table.
Does the each transmission fluid pressure (TFP)
switch display match each selected gear range? —
Go to Step 8 Refer to DTC
P1853, P1858 or P1863
8 Perform the line pressure test. Refer to Line
Pressure Test.
Is the line pressure within specifications for each
selected gear range? —
Go to Step 9 Refer to appropriate
instructions in the
Line Pressure Test
Step
Action Value(s)Yes No
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Page 4377 of 6020

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-93
Intermittent Conditions
ChecksAction
Definition:
The problem is not currently present but is indicated in DTC History.
OR
There is a customer complaint, but the symptom cannot currently be duplicated, if the problem is not DTC related.
Preliminary Checks • Refer to Symptoms - Transmission Controls before starting.
Harness/ Connector Many intermittent open or shorted circuits are affected by harness/ connector
movement that is caused by vibration, engine torque, bumps/ rough pavement, etc.
Test for this type of condition by performing the applicable procedure from the
following list:
• Move related connectors and wiring while monitoring the appropriate scan tool data.
• Move related connectors and wiring with the component commanded ON, and OFF, with the scan tool. Observe the component operation.
• With the engine running, move related connectors and wiring while monitoring engine operation.
If harness or connector movement affects the data displayed, component/ system
operation, or engine operation, inspect and repair the harness/ connections as
necessary.
Electrical Connections or Wiring Poor electrical connections, terminal tension or wiring problems cause most intermittent. To perform the following inspections:
• Poor mating of the connector halves, or terminals improperly seated in the connector body.
• Improperly formed or damaged terminals. Test for poor terminal tension.
• Poor terminal to wire connections including terminals crimped over insulation. This requires removing the terminal from the connector body.
• Corrosion/ water intrusion. Pierced or damaged insulation can allow moisture to enter the wiring. The conductor can corrode inside the insulation, with little
visible evidence. Look for swollen and stiff sections of wire in the suspect
circuits.
• Wires that are broken inside the insulation.
• Harness for pinched, cut or rubbed through wiring.
• Ensure that the wiring does not come in contact with hot exhaust components.
Control Module Power and Grounds
Component Power and Grounds Poor power or ground connections can cause widely varying symptoms.
• Test all control module power supply circuits. Many vehicles have multiple circuits supplying power to the control module. Other components in the system
may have separate power supply circuits that may also need to be tested.
Inspect connections at the module/ component connectors, fuses, and any
intermediate connections between the power source and the module/
component. A test lamp or a DMM may indicate that voltage is present, but
neither tests the ability of the circuit to carry sufficient current. Ensure that the
circuit can carry the current necessary to operate the component.
• Test all control module ground and system ground circuits. The control module may have multiple ground circuits. Other components in the system may have
separate grounds that may also need to be tested. Inspect grounds for clean
and tight connections at the grounding point. Inspect the connections at the
component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component.
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Page 4423 of 6020

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-139
Repair Instructions
Transmission Controls Module (TCM) Replacement
Description
The following A - C steps provide an overview
procedure to replace and reprogram a TCM. Each A -C
steps is explained further in this section.
A. Replace the old TCM with the new TCM.
B. Program the latest software and calibrations into the
new TCM using the Service Programming System
(SPS) if released. If not released, do not perform this
and skip to Step C.
C. Program the vehicle identification number (VIN) into
the TCM.
A. Removal and Installation
Removal Procedure 1. Disconnect the negative battery cable.
2. Disconnect the TCM harness connectors (1).
3. Loosen nuts (2) and remove the TCM (3) from the bracket (4).
Installation Procedure
Follow the removal steps in the reverse order. Be sure
that the connectors are securely fastened.
B. Programming Software and Calibrations
Program the latest software/ calibrations if released.
Refer to Service Programming System (SPS)
Description and SPS (Remote Procedure) or SPS
(Pass-Thru Procedure) in this section. If not released,
do not perform this and skip to Step C.
C. Programming Vehicle Identification Number
(VIN) Notice:
If you have performed SPS in the previous
step, VIN has prgrommaned already. Programming VIN
is not necessary in this step.
1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Select Diagnostics > appropriate vehicle identification > AT JR405E > Programming >
Program VIN.
4. If you installed a new, skip to step 8. If you installed a reused TCM from another vehicle or incorrect
VIN is programmed before, the TCM might be
locked already. In order to get programming
approval, the on-screen displays a message to
user. Get programming approval from the TIS
2000 using the following procedure:
a. Connect a scan tool to the terminal that installed TIS 2000 with the latest software and
the hardware key is plugged into port.
b. Turn ON the scan tool and keep at title screen.
c. Launch the TIS application.
d. Select the Security Access at the main screen.
e. Highlight the “Tech 2" on the Diagnostic Tool Selection screen and click “Next”.
f. Click “Close” on the Security Access Enabled screen.
g. Turn OFF the scan tool.
h. Disconnect the scan tool from the terminal.
5. Install a scan tool to the vehicle.
6. Turn ON the ignition, with the engine OFF.
7. Select Diagnostics > appropriate vehicle identification > AT JR405E > Programming >
Program VIN.
8. Input 17 digits of correct VIN.
9. After complete the programming, turn OFF/ ON the ignition.
10. Select Diagnostics > Lock ECU.
11. Follow the on-screen instructions and turn OFF/ ON the ignition.
Service Programming System (SPS)
Description
The service programming system (SPS) allows a
technician to program a control module through the
data link connector (DLC). The information transfer
circuit that is used at the DLC is the same serial data
circuit used by the scan tool for retrieving DTCs,
displaying data, clearing DTCs etc. This procedure
offers the ability to install software/ calibrations
matched to a particular vehicle.
Most control modules have two types of memory. The
software/ calibrations reside in the flash memory. The
two types of memory are listed below:
1
3 42
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Page 4425 of 6020

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-141
d. If there is already stored in the scan tool, theexisting data is displayed on the screen. The
scan tool asks user to keep existing data “Keep
Data” or “Continue” to request new vehicle
information from the TCM. If there is no data in
the scan tool, it will immediately start vehicle
identification.
e. Select the vehicle description by following the on-screen instructions based on stamped VIN
or affixed VIN plate on the vehicle.
f. During obtaining information, the scan tool is receiving information from all modules at the
same time. But only ECM information is
displayed on the screen.
g. Turn OFF all accessories and press “Okay”.
h. Verify that the correct VIN is displayed on the scan tool. If the VIN is incorrect or no VIN,
record the correct VIN.
2. Turn OFF the ignition.
3. Turn OFF the scan tool and disconnect from the vehicle.
4. Transfer the data from the terminal to the scan tool using the following procedure:
Notice: The TIS supports service programming with
the Tech 2 scan tool only.
a. Connect the scan tool to the terminal.
b. Launch the TIS application.
c. Select the Service Programming System at the main screen.
d. Highlight the following information on the Select Diagnostic Tool and Programming Process
screen, then click “Next”.
• Select Diagnostic Tool - Tech 2
• Select Programming Process - Identify whether an existing TCM is being
reprogrammed or a TCM is being replaced
with a new one
• Select ECU Location - Vehicle
e. Verify the connections on the Preparing for Communication screen, then click “Next”.
f. Verify the VIN on the Validate Vehicle Identification Number (VIN) screen, then click
“Next”.
Notice: If the TCM is replaced to new one, VIN does
not displayed. Input correct VIN reading from stamped
VIN or affixed VIN plate on the vehicle. If the TCM from
another vehicle is installed, input correct VIN by same
way.
g. Highlight Transmission on the Select SystemType screen, then click “Next”, if on-screen
instruction displayed.
h. Complete the following information based on the service ID plate on the Validate Vehicle
Data screen until “Next” is highlighted, then
click “Next”.
• Model • Model year
• Engine type
• Model designator
• Destination code
• Transmission type
i. Verify your selection on the Summary screen.
Notice: Refer to Service Bulletin and Description
column before service programming is performed if the
bulletins are listed along with the calibration files.
Notice: Select Cancel if you receive a message stating
that the calibration selected is already the current
calibration in the TCM and reprogramming with the
same download is not allowed.
j. Click “Reprog”.
k. The Transfer Data screen will appear until the progress bar reaches 100%.
5. Close the application and return to the TIS application selection screen after the download is
completed.
6. Turn OFF the scan tool and disconnect from the terminal.
7. Transfer the data from the scan tool to the TCM using the following procedure:
a. Install a scan tool.
b. Turn ON the ignition, with the engine OFF.
c. Select Service Programming System (SPS) > Program ECU.
d. Turn OFF all accessories and press “Continue”.
e. Programming in Process will appear until the progress bar reaches 100%.
Notice: Some warning lamp may turn ON or blink while
programming the TCM since communication between
the TCM and other modules are interrupted. Clear DTC
in any module after programming.
f. Press “Continue” and exit the program after thescan tool displays “Programming Was
Successful”.
8. Turn OFF the ignition.
9. Turn OFF the scan tool and disconnect from the vehicle.
Service Programming System (SPS) (Pass-
Thru Procedure)
Pass-Thru programming allows the scan tool to remain
connected to the terminal and to the vehicle throughout
the programming process. The vehicle must be in close
proximity to the terminal while using Pass-Thru.
1. Launch the TIS application.
2. Select the Service Programming System at the main screen.
3. Highlight the following information on the Select Diagnostic Tool and Programming Process screen,
then click “Next”:
• Select Diagnostic Tool-Select Pass - Thru
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Page 4426 of 6020

7A2-142 TRANSMISSION CONTROL SYSTEM (JR405E)
• Select Programming Process - Identifywhether as existing TCM is being
reprogrammed or an TCM is being replaced
with a new one.
• Select ECU Location - Vehicle
4. Complete all vehicle data on the Preparing for Communication/ Determine Vehicle screen until
“Next” is highlighted, then click “Next”.
5. Follow the instruction on the Preparing for Communication screen, then click “Next”.
Notice: In order to reduce the potential for signal loss,
the RS-232 cable should not be more than 25 feet long.
6. Verify the VIN on the Validate Vehicle Identification Number (VIN) screen, then click “Next”.
Notice: If the TCM is replaced to new one, VIN does
not displayed. Input correct VIN reading from stamped
VIN or affixed VIN plate on the vehicle. If the TCM from
another vehicle is installed, input correct VIN by same
way.
7. Highlight Transmission on the Select System Type screen, then click “Next”, if on-screen instruction
displayed.
8. Complete the following information based on the service ID plate on the Validate Vehicle Data
screen until “Next” is highlighted, then click “Next”.
• Model
• Model year
• Engine type
• Model designator
• Destination code
• Transmission type
9. Verify your selection on the Summary screen.
Notice: Refer to Service Bulletin and Description
column before service programming is performed if the
bulletins are listed along with the calibration files.
Notice: Select Cancel if you receive a message stating
that the calibration selected is already the current
calibration in the TCM and reprogramming with the
same download is not allowed.
10. Click “Reprog”.
11. The Transfer Data screen will appear until the progress bar reaches 100%.
Notice: Some warning lamp may turn ON or blink while
programming the TCM since communication between
the TCM and other modules are interrupted. Clear DTC
in any module after programming.
12. Close the application and return to the TIS application selection screen after the download is
completed.
13. Turn OFF the ignition.
14. Turn OFF the scan tool and disconnect from the vehicle.
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Page 4963 of 6020

ELECTRICAL-BODY AND CHASSIS 8A-25
Light Name Bulb No. Rated Power
V-W Number
of Bulbs Lens
Color Remarks
P16W 12-21 2 W hite Regular cab Backup light
P21W 12-16 2 W hite Extend cab, Crew cab
License plate light W 5W 12-5 2 W hite
A/C-Heater control light - 12-0.7 1 -
Dome light - 12-10 1 W hite
Spotlight/ Map light - 12-5 2 W hite
Light Name Rated Power
V-W Luminous Color Remarks
ILLUMINATION
LIGHT LED W hite
MULTI FUNCTION DISPLAY LCD Light blue
TURN SIGNAL LED Green
HIGH BEAM LED Blue
LOW FUEL LED Amber
A/T OIL TEMP LED Red
BRAKE LED Red
4W D LED Green
SEAT BELT LED Red
CHECK ENGINE LED Amber
OIL LED Red
FUEL FILTER LED Green
ABS LED Amber
SEDIMENTER LED Red
SRS LED Red
CHARGE LED Red
CHECK TRANS LED Red
CHECK 4W D LED Red
POW ER DRIVE LED Amber
3RD START LED Green
4W D-LOW LED Green
DOOR AJAR LED Red
P LED/LCD Green
R LED/LCD Green
N LED/LCD Green
D LED/LCD Green
3 LED/LCD Green
2 LED/LCD Green
A/T shift
indicator
L LED/LCD Green LED: Indicated on
the gauge
panel
LCD: Indicated on the
tachometer
panel
Meter
Illumination
light,
Indicator
light,
W arning
light
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Page 5520 of 6020

8A-582 ELECTRICAL-BODY AND CHASSIS
060R100102
Operating Procedure
The power up screen is displayed when you power up
the tester with the Isuzu systems PCMCIA card.
Follow the operating procedure.
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