service reset ISUZU AXIOM 2002 Service Repair Manual

6E±4
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1107 MAP Circuit Intermittent Low
Voltage 6E±386. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D T C P 1111 I AT Sensor Circuit Intermittent
High Voltage 6E±388. . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1112 IAT Sensor Circuit Intermittent
Low Voltage 6E±391. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1114 ECT Sensor Circuit Intermittent
Low Voltage 6E±393. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1115 ECT Sensor Circuit Intermittent
High Voltage 6E±395. . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Code(DTC)P1120-TPS 1
Throttle Position Sensor (TPS1) Output
Abnormal 6E±398. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1125 ETC (Electric Throttle Control)
Limit Performance Mode 6E±401. . . . . . . . . . . . . . . . .
DTC P1133 HO2S Insufficient Switching
Bank 1 Sensor 1 6E±404. . . . . . . . . . . . . . . . . . . . . . . .
DTC P1134 HO2S Transition Time Ratio
Bank 1 Sensor 1 6E±408. . . . . . . . . . . . . . . . . . . . . . . .
DTC P1153 HO2S Insufficient Switching
Bank 2 Sensor 1 6E±412. . . . . . . . . . . . . . . . . . . . . . . .
DTC P1154 HO2S Circuit Transition Time
Ratio Bank 2 Sensor 1 6E±416. . . . . . . . . . . . . . . . . .
DTC P1167 Fuel System Rich During Decel
Fuel Cut Off (Bank 1) 6E±420. . . . . . . . . . . . . . . . . . . .
DTC P1169 Fuel System Rich During Decel
Fuel Cut Off (Bank 2) 6E±422. . . . . . . . . . . . . . . . . . . .
DTC P1171 Fuel System Lean During
Acceleration 6E±424. . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1220 Throttle Position Senser2
(TPS2) Circuit Fault 6E±427. . . . . . . . . . . . . . . . . . . . .
DTC P1221 TPS1 ± TPS2 Correlation
(Circuit Performance) 6E±430. . . . . . . . . . . . . . . . . . .
DTC P1271 APS 1± 2 Correlation Error 6E±433. . .
DTC P1272 APS 2 ± 3 Correlation Error 6E±436. . .
DTC P1273 APS 1 ± 3 Correlation Error 6E±439. . . .
DTC P1275 APS 1 Output Fault 6E±442. . . . . . . . . . .
DTC P1280 APS 2 Output Fault 6E±444. . . . . . . . . . .
DTC P1285 APS 3 Output Fault 6E±446. . . . . . . . . . .
DTC P1290 ETC Forced Idle Mode 6E±448. . . . . . . .
DTC P1295 ETC Power Management Mode 6E±451
DTC P1299 ETC Forced Engine Shutdown
Mode 6E±455. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1310 ION Sensing Module Diagnosis 6E±459
DTC P1311 ION Sensing Module SEC
Line 1 Circuit Fault 6E±462. . . . . . . . . . . . . . . . . . . . . .
DTC P1312 ION Sensing Module SEC
Line 2 Circuit Fault 6E±465. . . . . . . . . . . . . . . . . . . . . .
DTC P1326 ION Sensing Module Combustion
Quality Input Circuit Fault 6E±468. . . . . . . . . . . . . . . .
DTC P1340 ION Sensing Module Cylinder ID
Fault (Cylinder Synchronization Fail) 6E±471. . . . . .
DTC P1404 EGR Stuck Closed 6E±474. . . . . . . . . . .
DTC P1441 EVAP System Flow During
Non-Purge 6E±477. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1514 TPS - MAF Correlation Error 6E±480. . . DTC P1515 Command - Actual TPS
Correlation Error 6E±484. . . . . . . . . . . . . . . . . . . . . . . .
DTC P1516 Command - Actual TPS
Correlation Error 6E±487. . . . . . . . . . . . . . . . . . . . . . . .
DTC P1523 Actuator Control Return
Performance 6E±490. . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1571 Brake Switch No Operation 6E±493. . . .
DTC P1625 PCM Unexpected Reset 6E±495. . . . . . .
DTC P1635 Reference Voltage # 1 Circuit
Fault 6E±496. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1639 Reference Voltage # 2 Circuit
Fault 6E±498. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1640 Driver-1-Output Circuit Fault
(ODM) 6E±500. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1650 Quad Driver Module ªAº Fault 6E±503. .
Symptom Diagnosis 6E±506. . . . . . . . . . . . . . . . . . . . .
Default Matrix Table 6E±535. . . . . . . . . . . . . . . . . . . . .
On Vehicle Service
Crankshaft Position (CKP) Sensor 6E±538. . . . . . . . .
Engine Coolant Temperature (ECT) Sensor 6E±538.
Heated Oxygen Sensor (HO2S) 6E±539. . . . . . . . . . .
Intake Air Temperature (IAT) Sensor 6E±542. . . . . . .
ION Sensing Module 6E±542. . . . . . . . . . . . . . . . . . . . .
Mass Air Flow (MAF) Sensor 6E±543. . . . . . . . . . . . .
Manifold Absolute Pressure (MAP) Sensor 6E±544.
Malfunction Indicator Lamp (MIL) 6E±545. . . . . . . . . .
Reduced Power Lamp 6E±545. . . . . . . . . . . . . . . . . . .
Powertrain Control Module (PCM) 6E±545. . . . . . . . .
Service Precaution 6E±545. . . . . . . . . . . . . . . . . . . .
EEPROM 6E±547. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle Position (TP) Sensor 6E±547. . . . . . . . . . . . .
Vehicle Speed Sensor (VSS) 6E±548. . . . . . . . . . . . .
Air Cleaner/Air Filter 6E±549. . . . . . . . . . . . . . . . . . . . .
Common Chamber 6E±549. . . . . . . . . . . . . . . . . . . . . .
Accelerator Pedal Replacement 6E±550. . . . . . . . . . .
Accelerator Position Sensor Replacement 6E±551. .
Accelerator Position Sensor Adjustment 6E±551. . . .
Fuel Filler Cap 6E±552. . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter 6E±552. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Gauge Unit 6E±553. . . . . . . . . . . . . . . . . . . . . . . .
Fuel Injectors 6E±554. . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Metering System 6E±555. . . . . . . . . . . . . . . . . . . .
Fuel Pump Assembly 6E±555. . . . . . . . . . . . . . . . . . . .
Fuel Pump Relay 6E±556. . . . . . . . . . . . . . . . . . . . . . . .
Fuel Rail Assembly 6E±557. . . . . . . . . . . . . . . . . . . . . .
Fuel Tank 6E±558. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle Body (TB) 6E±558. . . . . . . . . . . . . . . . . . . . . . .
Electronic Ignition System 6E±560. . . . . . . . . . . . . . . .
Catalytic Converter 6E±561. . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Thermo Relay 6E±561. . . . . . . . . . .
EVAP Canister Hoses 6E±561. . . . . . . . . . . . . . . . . . . .
EVAP Canister 6E±562. . . . . . . . . . . . . . . . . . . . . . . . . .
EVAP Canister Vent Solenoid 6E±562. . . . . . . . . . . . .

6E±39
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Identifying stored Diagnostic Trouble Codes (DTCs).

Clearing DTCs.

Performing output control tests.

Reading serial data.
TS24064
Decimal/Binary/Hexadecimal Conversions
Beginning in 1996, Federal Regulations require that all
auto manufacturers selling vehicles in the United States
provide Scan Tool manufacturers with software
information to display vehicle operating parameters. All
Scan Tool manufacturers will display a variety of vehicle
information which will aid in repairing the vehicle. Some
Scan Tools will display encoded messages which will aid
in determining the nature of the concern. The method of
encoding involves the use of a two additional numbering
systems: Binary and Hexadecimal.
The binary number system has a base of two numbers.
Each digit is either a 0 or a 1. A binary number is an eight
digit number and is read from right to left. Each digit has a
position number with the farthest right being the 0 position
and the farthest left being the 7 position. The 0 position,
when displayed by a 1, indicates 1 in decimal. Each
position to the left is double the previous position and
added to any other position values marked as a 1.
A hexadecimal system is composed of 16 different alpha
numeric characters. The alpha numeric characters used
are numbers 0 through 9 and letters A through F. The
hexadecimal system is the most natural and common
approach for Scan Tool manufacturers to display data
represented by binary numbers and digital code.
Verifying Vehicle Repair
Verification of vehicle repair will be more comprehensive
for vehicles with OBD II system diagnostic. Following a
repair, the technician should perform the following steps:
1. Review and record the Fail Records and/or Freeze
Frame data for the DTC which has been diagnosed
(Freeze Frame data will only be stored for an A or B
type diagnostic and only if the MIL has been
requested).
2. Clear DTC(s).
3. Operate the vehicle within conditions noted in the Fail
Records and/or Freeze Frame data.
4. Monitor the DTC status information for the DTC which
has been diagnosed until the diagnostic test
associated with that DTC runs.
Following these steps are very important in verifying
repairs on OBD ll systems. Failure to follow these steps
could result in unnecessary repairs.
Reading Diagnostic Trouble Codes Using
The Tech 2 Scan Tool
The procedure for reading diagnostic trouble code(s) is to
use a diagnostic Scan Tool. When reading DTC(s), follow
instructions supplied by tool manufacturer.
Clearing Diagnostic Trouble Codes
IMPORTANT:Do not clear DTCs unless directed to do
so by the service information provided for each diagnostic
procedure. When DTCs are cleared, the Freeze Frame
and Failure Record data which may help diagnose an
intermittent fault will also be erased from memory.
If the fault that caused the DTC to be stored into memory
has been corrected, the Diagnostic Executive will begin to
count the ªwarm-upº cycles with no further faults
detected, the DTC will automatically be cleared from the
PCM memory.
To clear Diagnostic Trouble Codes (DTCs), use the
diagnostic Scan Tool ªclear DTCsº or ªclear informationº
function. When clearing DTCs follow instructions
supplied by the tool manufacturer.
When a Scan Tool is not available, DTCs can also be
cleared by disconnecting
one of the following sources for
at least thirty (30) seconds.
NOTE: To prevent system damage, the ignition key must
be ªOFFº when disconnecting or reconnecting battery
power.

The power source to the control module. Examples:
fuse, pigtail at battery PCM connectors, etc.

The negative battery cable. (Disconnecting the
negative battery cable will result in the loss of other
on-board memory data, such as preset radio tuning).

ENTERTAINMENT8C±15
Audio Self-Diagnosis
StepActionValue(s)Ye sNo
11. Simultaneously press and hold the RESET key and
the CLOCK key (on the display panel).
2. Turn the ignition switch to the ON position.
Does DIAG appear on the display screen?
ÐGo to Step 2
Check power
supply and
component
connections.
Start
self-diagnosis
again.
2Press and release the SERVICE key (1 time only).
Does DIAG AUDIO appear on the display?
ÐGo to Step 3Go to Step 11
3Press and release the SERVICE key (1 time only) to
check tape connections.
Does TAPE OK appear on the display?
ÐGo to Step 4
On NG display,
Go to
Step 11
4Press and release the SERVICE key (1 time only) to
check CD changer connections.
Does CD CHG OK appear on the display?
ÐGo to Step 5
On NG display,
Go to
Step 11
5Press and release the SERVICE key (1 time only) to
check communication with A/C unit.
Does A/C DATA OK appear on the display?
ÐGo to Step 9
On NG display,
Go to
Step 6
6Is A/C DATA ERR1(abnormal display data line)
displayed?
Ð
Refer to A/C
self-diagnosis
Go to Step 7
7Is A/C DATA ERR2 (abnormal CLOCK data line)
displayed?
Ð
Refer to A/C
self-diagnosis
Go to Step 8
8Is A/C DATA ER3 (abnormal SW data line) displayed?ÐGo to Step 11Ð
9Press and release the SERVICE key (1 time only) to
display the A/C unit error history.
Is the action complete?
ÐGo to Step 10Ð
101. Press and release the SERVICE key (1 time only) to
change to the key diagnosis mode.
2. Press and release each key.
NOTE: As a key is pressed, its name should appear on
the display. The A/C LED should blink at 1±second
intervals.
Did the events described in Step 2 occur?
ÐGo to Step 12Go to Step 11
11Replace the audio unit.
Is the action complete?
ÐGo to Step 1Ð
12Press and release the ON/OFF key.
Is the action complete?
ÐGo to Step 1Go to Step 13
13Press and release the SERVICE key (1 time only).
Is the action complete?
ÐGo to Step 3Ð

8C±16ENTERTAINMENT
Display Self-Diagnosis
StepActionValue(s)Ye sNo
11. Simultaneously press and hold the RESET key and
the CLOCK key (on the display panel).
2. Turn the ignition switch to the ON position.
Does DIAG appear on the display screen?
ÐGo to Step 2
Check power
supply and
component
connections.
Start
self-diagnosis
again.
2Press and release the RESET key (1 time only).
Does DIAG DISP appear on the display?
ÐGo to Step 3Go to Step 10
3Press and release the RESET key (1 time only) to start
audio communications diagnosis.
Does AUD DAT OK appear on the display?
ÐGo to Step 5
On NG display,
Go to
Step 4
4Replace the audio unit.
Is the action complete?
ÐGo to Step 1Ð
51. Press and release the RESET key (1 time only).
2. Confirm that the trouble history is displayed on the
screen.
Is the trouble history displayed?
ÐGo to Step 6Ð
6Press and release the RESET key (1 time only) to start
MID communications diagnosis.
Does MID DATA OK appear on the display?
ÐGo to Step 8
On NG display,
Go to
Step 7
7Replace the MID unit.
Is the action complete?
ÐGo to Step 1Ð
81. Press and release the RESET key (1 time only) to
display MID communications error history.
2. Confirm that the error history is displayed on the
screen.
Is the error history displayed?
ÐGo to Step 9Ð
9Press and release the RESET key (1 time only) to open
all segments.
Do all segments light?
ÐGo to Step 11Go to Step 10
10Replace the display unit.
Is the action complete?
ÐGo to Step 1Ð
11Press and release the ON/OFF key to complete display
self-diagnosis.
Is the action complete?
ÐGo to Step 1Go to Step 12
12Press and release the SERVICE key.
Is the action complete?
ÐGo to Step 3Ð

ENTERTAINMENT8C±17
MID Self-Diagnosis
StepActionValue(s)Ye sNo
11. Simultaneously press and hold the RESET key and
the CLOCK key (on the display panel).
2. Turn the ignition switch to the ON position.
Does DIAG appear on the display screen?
ÐGo to Step 2
Check power
supply and
components
connections.
Start
self-diagnosis
again.
2Press and release the CLOCK key (1 time only).
Does DIAG MID appear on the display?
ÐGo to Step 3Ð
3Press and release the CLOCK key (1 time only) to
begin GPS communications diagnosis.
Does GPS OK appear on the display?
ÐGo to Step 5
On ERROR1,
Go to
Step 4
4Repair open circuit between MID and GPS receiver
(I-13±2 ~ I-16±5).
Is the action complete?
ÐGo to Step 1Ð
5Press and release the CLOCK key (1 time only) to
begin fuel injection pulse diagnosis.
Does F-INJ OK appear on the display?
ÐGo to Step 7
On ERROR2,
Go to
Step 6
6Repair open fuel injection pulse circuit (I-13±5 ~
E35±8).
Is the action complete?
ÐGo to Step 1Ð
7Press and release the CLOCK key (1 time only) to
begin fuel remainder pulse diagnosis.
Does F-SENS OK appear on the display?
ÐGo to Step 9
On ERROR3,
Go to
Step 9
8Repair open fuel remainder pulse circuit (I-13±6 ~
E35±48).
Is the action complete?
ÐGo to Step 1Ð
9Press and release the CLOCK key (1 time only) to
begin gyro-sensor diagnosis.
Does GYRO OK appear on the display?
ÐGo to Step 11
On ERROR4,
Go to
Step 10
10Replace the MID control unit.
Is the action complete?
ÐGo to Step 1Ð
111. Press and release the CLOCK key (1 time only) to
begin vehicle speed sensor diagnosis.
2. Drive vehicle.
Does SPEED OK appear on the display?
ÐGo to Step 13
On ERROR5,
Go to
Step 12
12Repair open vehicle speed sensor circuit (I-13±15 ~
E43±3).
Is the action complete?
ÐGo to Step 1Ð
13Press and release ON/OFF key to return to start of
diagnosis screen.
Is the action complete?
ÐGo to Step 1Go to Step 14
14Press and release the SERVICE key.
Is the action complete?
ÐGo to Step 2Ð