2002 ISUZU AXIOM turn signal

TRANSMISSION CONTROL SYSTEM (4L30±E)7A1±27
DTC P0705 Transmission Range Switch (Mode Switch) Illegal Position
D07R200005
Circuit Description

The range switch supplies the Powertrain Control
Module (PCM) with information regarding the selector
lever position: P, R, N, D, 3, 2 or L. The selector lever
position is indicated by the state of four ON/OFF
contacts. The range switch is located on one side of
the transmission. It is on the transmission manual
shaft and is fixed to the main case.

The range switch is also used to provide the
information P or N to the engine crank wiring. The
engine can be cranked only if connector E±41
terminal 4(H) is connected to terminal 1(E) which is
connected to ground.

The range switch is also used to provide the backup
lamp power in reverse. This is the reason why the
range switch is supplied through a 15A fuse (TURN,
BACK UP). This fuse can burn due to a short circuit in
the back up lamp.
This DTC detects when a fuse is open or the range switch
circuit does not work. This is a type ªDº DTC.
Conditions For Setting The DTC

Range switch illegal positions met for 5 seconds.
Action Taken When The DTC Sets

Default to D position.

Inhibit torque management.

Maximum line pressure.
Turn Force Motor OFF.

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.
Diagnostic Aids

Refer to accompanying chart for the normal range
signals and the illegal combinations.

Inspect the wiring for poor electrical connections at
the PCM and at the transmission 8±way 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.

Refer to the
ªRange Switch Logic Tableº for further
information.

TRANSMISSION CONTROL SYSTEM (4L30±E)7A1±37
DTC P0712 Transmission Fluid Temperature (TFT) Sensor Circuit Low Input
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
2Perform the transmission fluid checking procedure. Refer to
Checking Transmission Fluid Level and Condition in Automatic
Transmission (4L30±E) section
Was the fluid checking procedure performed?
Go to Step 3
Refer to
Checking
Transmission
Fluid Level and
Condition in
Automatic
Transmission
(4L30±E) section
31. 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.
Does the scan tool display a TFT sensor signal voltage less than
0.4 volts?
Go to Step 4
Go to Diagnostic
Aids
41. Turn the ignition ªoffº.
2. Disconnect the transmission 7±way connector E±42.
3. Turn the ignition ªonº.
Does the TFT signal voltage change to match the voltage 4.92
volts?
Go to Step 5Go to Step 10
5Using the J39200 DVOM, measure the resistance between
terminals E42±4(F) and E42±1(E).
Is the resistance within specifications? (See Transmission Fluid
Temperature (TFT) Sensor Specifications.)
Go to Diagnostic
Aids
Go to Step 6
61. Disconnect the transmission 7±way connector E±42.
2. Using the J39200 DVOM, measure the resistance between
terminals E42±4(F) and E42±1(E).
Is the resistance within specifications? (See Transmission Fluid
Temperature (TFT) Sensor Specifications.)
Go to Diagnostic
Aids
Go to Step 7
71. Remove the transmission oil pan. Refer to Transmission Oil
Temperature Sensor (Main Case) in Automatic Transmission
(4L30±E) section.
2. Check the internal wiring harness for a short to ground.
Was a problem found?
Go to Step 9Go to Step 8
81. Disconnect the internal wiring harness at the TFT sensor.
2. Measure the resistance of the TFT sensor.
Is the resistance within specifications? (See Transmission Fluid
Temperature (TFT) Sensor Specifications.)
Go to Diagnostic
Aids
Go to Step 9
9Replace the TFT Sensor.
Is the replacement complete?
Go to Step 13Ð
10Check circuit RED/BLK for a short to ground.
Was a problem found?
Go to Step 13Go to Step 11

7A1±40
TRANSMISSION CONTROL SYSTEM (4L30±E)
DTC P0713 Transmission Fluid Temperature (TFT) Sensor Circuit High Input
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
Emission in
Engine section
2Perform the transmission fluid checking procedure.
Refer to
Checking Transmission Fluid Level and Condition in
Automatic Transmission (4L30±E) section.
Was the fluid checking procedure performed?
Go to Step 3
Refer to
Checking
Transmission
Fluid Level and
Condition in
Automatic
Transmission
(4L30±E) section
31. 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.
Does the scan tool display a TFT sensor signal voltage greater
than 4.86 volts?
Go to Step 4
Go to Diagnostic
Aids
41. Turn the ignition ªoffº.
2. Disconnect the transmission 7±way connector E±42.
3. Install a fused jumper wire from terminal E42±4(F) to
E42±1(E) on the engine harness.
4. Turn the ignition ªonº.
Does the TFT signal voltage drop to less than 0.4 volts?
Go to Step 5Go to Step 10
51. Turn the ignition ªoffº.
2. Using the J39200 DVOM, measure the resistance between
terminals E42±4(F) and E42±1(E).
Is the resistance within specifications? (See Transmission Fluid
Temperature (TFT) Sensor Specifications.)
Go to Diagnostic
Aids
Go to Step 6
61. Disconnect the transmission 7±way connector E±42.
2. Using the J39200 DVOM, measure the resistance between
terminals E42±4(F) and E42±1(E).
Is the resistance within specifications? (See Transmission Fluid
Temperature (TFT) Sensor Specifications.)
Go to Diagnostic
Aids
Go to Step 7
71. Remove the transmission oil pan.
2. Check the internal wiring harness for an open. Refer to
Transmission Oil Temperature Sensor (Main Case) in
Automatic Transmission (4L30±E) section.
Was a problem found and corrected?Go to Step 14Go to Step 8
81. Disconnect the internal wiring harness at the TFT sensor.
2. Measure the resistance of the TFT sensor.
Is the resistance within specifications? (See Transmission Fluid
Temperature (TFT) Sensor Specifications.)
Go to Diagnostic
Aids
Go to Step 9
9Replace TFT sensor. Refer to Transmission Oil Temperature
Sensor (Main Case) in Automatic Transmission (4L30±E) section.
Is the replacement complete?Go to Step 14Ð

7A1±56
TRANSMISSION CONTROL SYSTEM (4L30±E)
DTC P0742 Torque Converter Clutch (TCC) System Stuck On
D07R200008
Circuit Description
The PCM energizes the TCC solenoid by creating an
ignition voltage on circuit BRN/BLU. When ignition
voltage is energized by the PCM, the TCC solenoid stops
converter signal oil from exhausting. This causes
converter signal oil pressure to increase and move the
TCC valve. The TCC solenoid will deenergize when the
PCM no longer provides ignition voltage. When the TCC
solenoid is deenergized, it will exhaust fluid and release
the TCC.
This DTC detects low torque converter slip when the TCC
is commanded ªoffº. This is a type ªBº DTC.
Conditions For Setting The DTC
The following conditions occur once per TCC cycle, three
consecutive times:

No TPS DTCs P0122 or P0123.

No OSS DTCs P0722 or P0723.

No TCC solenoid DTC P1860.

TP angle is greater than 20%.

Engine speed is greater than 500 rpm and less than
3,000 rpm.

Engine vacuum is between 0 and 70 kPa.

Commanded gear is not 1st.

Gear range is D4.

TCC is commanded ªoffº.

No TCC Stuck off DTC P1870.
TCC slip speed is between ±20 and 40 rpm for 2
seconds.

Vehicle speed is greater than 25 km/h (15 mph) and
less than 120 km/h (75 mph).

Speed ratio is greater than 0.9 and less than 2.0.
Action Taken When The DTC Sets

For lamp illuminate refer to DTC type definition (type
B).

Inhibit TCC engagement.
Conditions For Clearing The MIL/DTC

The PCM will turn off the MIL and CHECK TRANS
Lamp after three consecutive ignition cycles without a
failure reported.

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.

TRANSMISSION CONTROL SYSTEM (4L30±E)7A1±79
DTC P1860 TCC PWM Solenoid Electrical
D07R200011
Circuit Description
The PCM allows current to flow through the solenoid coil
according to the duty cycle (percentage of ªonº and ªoffº
time). This current flow through the solenoid coil creates
a magnetic field that magnetizes the solid core. The
magnetized core attracts the check ball to seat against
spring pressure. This blocks the exhaust for the TCC
signal fluid and allows 2±3 drive fluid to feed to TCC signal
circuit.The TCC signal fluid pressure acts on the TCC
regulator valve to regulate line pressure and to apply fluid
pressure to the torque converter clutch shift control valve.
When the TCC shift valve is in the apply position,
regulated apply fluid pressure is directed through the TCC
valve to apply the torque converter clutch. The TCC
PWM solenoid is used in conjunction with the TCC PWM
solenoid to regulate fluid to the torque converter. The
TCC PWM solenoid is attached to the valve body within
the transmission.
This DTC detects a continuous open or short to ground or
ignition in the TCC circuit or the TCC PWM solenoid. This
is a type ªBº DTC.
Conditions For Setting The DTC

Battery voltage is between 10 and 16 volts.

No shift solenoid A DTCs P0751 or P0752 or P0753.

No shift solenoid B DTCs P0756 or P0757 or P0758.

Ignition is ªonº, Engine ªrunº.

The PCM commands the solenoid ªonº and the
voltage remains low (zero volts).

The PCM commands the solenoid ªoffº and the
voltage remains high (B+).

All conditions met for 0.875 ~ 1.25 seconds.
Action Taken When The DTC Sets

Inhibit TCC engagement.
For lamp illuminate refer to
DTC type definition (type
B).
Conditions For Clearing The MIL/DTC

The PCM will turn off the MIL and CHECK TRANS
Lamp after three consecutive ignition cycles without a
failure reported.

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.
Diagnostic Aids

Inspect the wiring for poor electrical connections at
the PCM and at the transmission 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.
Test Description
The numbers below refer to the step numbers on the
diagnostic chart
:
3. This test checks for voltage to the solenoid.
4. This test checks the ability of the PCM and wiring to
control the ignition circuit.
9. This test checks the resistance of the TCC solenoid
and the internal wiring harness.

7A1±82
TRANSMISSION CONTROL SYSTEM (4L30±E)
DTC P1870 Transmission Component Slipping (TCC Stuck Off)
D07R200008
Circuit Description
The PCM monitors the difference in engine speed and
transmission output speed. For example in D3 drive
range with the ECCC commanded, the engine speed
should closely match transmission output speed.
This DTC detects excessive TCC slip when the ECCC is
engaged. This is a type ªBº DTC.
Conditions For Setting The DTC
The following conditions are met for three TCC cycles
with reported excessive TCC slip conditions.

No OSS DTCs P0722 or P0723.

No shift solenoid A DTCs P0751 or P0752 or P0753.

No shift solenoid B DTCs P0756 or P0757 or P0758.

No TCC solenoid DTCs P0742 or P1860 or P1870.

Engine speed is between 1,000 and 3,500 rpm for 0.5
seconds.

Gear range is D4.

13% < TPS < 99%

50 < Engine Torque < 300 N´m

TFT is between 20
and 150
C (68
and 302
F).

TCC slip speed is between 250 rpm and 800 rpm for 3
times 7 seconds.

Vehicle speed is between 25 km/h (15 mph) and 225
km/h (158 mph).

Speed ratio is between 0.6 and 0.95.

ECCC is ªONº.
Low (0.8) < TCC Capacity < hi (0.99) for 5 seconds
Action Taken When The DTC Sets

Only stored in memory.

For lamp illuminate refer to
DTC type definition (type
B).
Conditions For Clearing The MIL/DTC

The PCM will turn off the MIL and CHECK TRANS
Lamp after three consecutive ignition cycles without a
failure reported.

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 exist and the ignition is cycled ªoffº
long enough to power down the PCM.
Diagnostic Aids

Range switch malfunction could set a DTC P1870.

A mechanical failure of the shift solenoids, TCC
solenoid, or TCC PWM solenoid could set a DTC
P1870.

Internal transmission failures may set a DTC P1870.

An intermittent or incorrect engine speed signal may
set a DTC P1870.

TRANSMISSION CONTROL SYSTEM (4L30±E)7A1±83
Test Description
The numbers below refer to the step numbers on the
diagnostic chart:
2. This test checks the indicated range signal to the
actual selected range. A faulty switch could set a
DTC P1870.
3. This test checks the torque converter for slippage
while in a commanded lockup state.Range Switch Logic Table
RangeRange Switch Ping
PositionABCP(G)
ParkONOFFOFFON
ReverseONONOFFOFF
NeutralOFFONOFFON
D4OFFONONOFF
D3ONONONON
2ONOFFONOFF
LOFFOFFONON
IllegalOFFOFFOFFOFF
IllegalOFFOFFOFFON
DTC P1870 Transmission Component Slipping (TCC Stuck Off)
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. Apply the brake pedal.
5. Select each transmission range: DL, D2, D3, D4, N, R, and P.
Does each selected transmission range match the scan tool ªTR
Switchº display?
Go to Step 3
Go to ªRange
Switch Logic
Tableº
3Drive the vehicle in 4th gear while the TCC is engaged.
At any time is the ªTCC Slip Speedº greater than 130 rpm for 8
seconds while the TCC is engaged?
Go to System
Diagnosis ChartsGo to Diagnostic
Aids

LIGHTING SYSTEM8A±1
AXIOM
BODY AND ACCESSORIES
CONTENTS
Lighting System 8A. . . . . . . . . . . . . . . . . . . . . . . . .
Wiper / Washer System 8B. . . . . . . . . . . . . . . . . .
Entertainment 8C. . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring System 8D. . . . . . . . . . . . . . . . . . . . . . . . . .
Meter and Gauge 8E. . . . . . . . . . . . . . . . . . . . . . . Body Structure 8F. . . . . . . . . . . . . . . . . . . . . . . . . .
Seats 8G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security and Locks 8H. . . . . . . . . . . . . . . . . . . . . .
Sunroof / Convertible Top 8I. . . . . . . . . . . . . . . .
Exterior / Interior Trim 8J. . . . . . . . . . . . . . . . . . . .
LIGHTING SYSTEM
CONTENTS
Service Precaution 8A±2. . . . . . . . . . . . . . . . . . . . . .
Headlight Bulb 8A±3. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Assembly 8A±4. . . . . . . . . . . . . . . . . . . . .
Removal 8A±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Adjustment 8A±4. . . . . . . . . . . . . . . . . .
Side Marker Light Bulb 8A±6. . . . . . . . . . . . . . . . . . .
Removal 8A±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight Bulb 8A±7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
License Plate Light Bulb 8A±8. . . . . . . . . . . . . . . . . .
Removal 8A±8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stoplight Bulb 8A±8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation 8A±8. . . . . . . . . . . . . . .
High Mounted Stoplight Assembly 8A±9. . . . . . . . .
Removal 8A±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Mounted Stoplight Bulb 8A±9. . . . . . . . . . . . . .
Removal 8A±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backup Light Bulb 8A±10. . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal Light Bulb 8A±10. . . . . . . . . . . . . .
Removal and Installation 8A±10. . . . . . . . . . . . . . .
Rear Turn Signal Light Bulb 8A±11. . . . . . . . . . . . . .
Removal 8A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome Light Bulb 8A±11. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . Map Light Bulb 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Light Bulb 8A±12. . . . . . . . . . . . . . . . . . . . . .
Removal 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Luggage Room Light Bulb 8A±13. . . . . . . . . . . . . . . .
Removal 8A±13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Lever Illumination Light Bulb (A/T) 8A±13. . . .
Removal 8A±13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vanity Mirror Illumination Light Bulb 8A±14. . . . . . . .
Removal 8A±14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switch Unit Assembly Illumination
Light Bulb (Power/Winter & Intelligent
Suspension Switch) 8A±14. . . . . . . . . . . . . . . . . . . . .
Removal 8A±14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOD Switch Illumination Light Bulb 8A±15. . . . . . . .
Removal 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control Main Switch Illumination
Light Bulb 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wiper and Washer Switch Illumination
Light Bulb 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Heater Switch Illumination Light Bulb 8A±16. .
Removal 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Switch 8A±17. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation 8A±17. . . . . . . . . . . . . . .
Lighting Switch (Combination Switch) 8A±17. . . . . .