2002 ISUZU AXIOM battery

6E±501
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1640 ± Driver-1-Output Circuit Fault (ODM)

StepActionValue(s)Ye sNo
1Was the ªOn-Board Diagnostic (OBD) System Checkº
performed?
ÐGo to Step 2
Go to OBD
System
Check
2Check the fuse for the driver circuit that was shown as
faulty.
Was the fuse blown?
ÐGo to Step 3Go to Step 4
31. Check for a short to ground between the fuse and
the affected component.
2. Replace the fuse after making any necessary
repairs.
Is the action complete?
ÐVerify repairÐ
4Disconnect the PCM connector for the affected driver
circuit.
Is there any damage to the PCM pin or connector?
ÐGo to Step 5Go to Step 6
5Repair the damaged pin or terminal.
Is the action complete?
ÐVerify repairÐ
6Were either of the lamp circuits for ªCheck Engineº or
ªCheck Transº indicated as faulty by the Tech 2?
ÐGo to Step 7Go to Step 13
71. Leave the PCM connector for the lamp driver circuit
disconnected.
2. Ignition ªONº.
3. Using a DVM, check the voltage at the PCM
connector for the affected lamp driver circuit.
Was the voltage equal to the specified value?
B+Go to Step 15Go to Step 8
81. Ignition ªONº.
2. Check for battery voltage at the fuse for the affected
lamp circuit.
Was battery voltage available at the fuse?
ÐGo to Step 10Go to Step 9
9Repair the open circuit between the ignition switch and
the fuse.
Is the action complete?
ÐVerify repairÐ
101. Ignition ªOFFº.
2. Disconnect the PCM connector for the affected
driver terminal.
3. Connect an ohmmeter between a good ground and
the PCM connector for the affected driver.
Did the ohmmeter indicate continuity?
ÐGo to Step 11Go to Step 12
11Repair the short to ground between the affected
component and its PCM driver terminal.
Is the action complete?
ÐVerify repairÐ
12Repair the open circuit between the fuse and the PCM
driver terminal for the affected circuit.
Is the action complete?
ÐVerify repairÐ

6E±502
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1640 ± Driver-1-Output Circuit Fault (ODM)

 
StepNo Ye s Value(s) Action
131. Connect the PCM.
2. Start the engine and let it idle.
3. Backprobe the affected terminal at the PCM with a
DVM.
Was the voltage equal to the specified value?
+BGo to Step 15Go to Step 14
141. Run the engine at idle.
2. Check for battery voltage at the fuse for the affected
circuit.
Was battery voltage available at the fuse?
ÐGo to Step 10Go to Step 9
15Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
On-Vehicle Service in
Powertrain Control Module and Sensors for
procedures.
And also refer to latest Service Bulletin.
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
ÐVerify repairÐ

6E±503
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P1650 Quad Driver Module ªAº Fault
Circuit Description
The Quad Driver Module (QDMs) are used by the
powertrain control module (PCM) to turn ªONº
current±driven devices that are needed to control two
engine functions. The PCM monitors open or short circuit
of either of Canister Control Purge (CCP) Vent solenoid or
Variable Intake Manifold (VIM).
Conditions for Setting the DTC

Ignition ªONº.

Engine running.

Ignition voltage.

Output voltage does not equal voltage and is not less
than 1 volt when out put is ªONº.

Above conditions occur for at least 0.5 second.
Action Taken When the DTC Sets

The PCM will not illuminate the malfunction indicator
lamp (MIL).

The PCM will store conditions which were present
when the DTC was set as Failure Records only. This
information will not be stored as Freeze Frame data.
Conditions for Clearing the MIL/DTC

The PCM will turn the MIL ªOFFº on the third
consecutive trip cycle during which the diagnostic has
been run and the fault condition is no longer present.

A history DTC P1650 will clear after 40 consecutive
warm-up cycles have occurred without a fault.

DTC P1650 can be cleared by using the Tech 2 ªClear
Infoº function or by disconnecting the PCM battery
feed.
Diagnostic Aids
Check for the following conditions:

Poor connection at PCM ± Inspect harness connectors
for backed-out terminals, improper mating, broken
locks, improperly formed or damaged terminals, and
poor terminal-to-wire connection.

Damaged harness ± Inspect the wiring harness for
damage, If the harness appears to be OK, disconnect
the PCM, turn the ignition ªONº and observe a
voltmeter connected to the suspect driver circuit at the
PCM harness connector while moving connectors and
wiring harnesses relates to the MIL. A change in
voltage will indicate the location of the fault.

Poor connection at component ± Examine for
damaged connectors, unplugged connector, or
damaged terminals at the following locations: canister
purge solenoid, fuel level sensor. An open ignition feed
circuit at any of these components will cause DTC
P1650 to be set.
Reviewing the Failure Records vehicle mileage since the
diagnostic test last failed may help determine how often
the condition that caused the DTC to be set occurs. This
may assist in diagnosing the condition.
The following PCM pins are controlled by
Quad driver modules (QDMs):

S74 ± VIM

S48 ± Canister control purge
Test Description
Number(s) below refer to the step number(s) on the
Diagnostic Chart.
4. The Tech 2 Driver Module Status indicates the PCM
pin that is affected.
9.The Tech 2 may indicate ªshort circuitº even when the
problem is an open circuit. The cause of an open
circuit may be in the component itself.
11.A short to ground on the ignition side of the
component will blow the fuse. Since the fuse was
checked in Step 2, a short to ground would be
between the affected component and the PCM.

6E±504
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1650 ± Quad Driver Module (QDM) Fault

StepActionValue(s)Ye sNo
1Was the ªOn-Board Diagnostic (OBD) System Checkº
performed?
ÐGo to Step 2
Go to OBD
System
Check
2Check the fuse for the driver circuit that was shown as
faulty.
Was the fuse blown?
ÐGo to Step 3Go to Step 4
31. Check for a short to ground between the fuse and
the affected component.
2. Replace the fuse after making any necessary
repairs.
Is the action complete?
ÐVerify repairÐ
4Disconnect the PCM connector for the affected driver
circuit.
Is there any damage to the PCM pin or connector?
ÐGo to Step 5Go to Step 6
5Repair the damaged pin or terminal.
Is the action complete?
ÐVerify repairÐ
6Were either of the lamp circuits for ªCheck Engineº or
ªCheck Transº. indicated as faulty by the Tech 2?
ÐGo to Step 7Go to Step 13
71. Leave the PCM connector for the lamp driver circuit
disconnected.
2. Ignition ªONº.
3. Using a DVM, check the voltage at the PCM
connector for the affected lamp driver circuit.
Was the voltage equal to the specified value?
B+Go to Step 15Go to Step 8
81. Ignition ªONº.
2. Check for battery voltage at the fuse for the affected
lamp circuit.
Was battery voltage available at the fuse?
ÐGo to Step 10Go to Step 9
9Repair the open circuit between the ignition switch and
the fuse.
Is the action complete?
ÐVerify repairÐ
101. Ignition ªOFFº.
2. Disconnect the PCM connector for the affected
driver terminal.
3. Connect an ohmmeter between a good ground and
the PCM connector for the affected driver.
Did the ohmmeter indicate continuity?
ÐGo to Step 11Go to Step 12
11Repair the short to ground between the affected
component and its PCM driver terminal.
Is the action complete?
ÐVerify repairÐ
12Repair the open circuit between the fuse and the PCM
driver terminal for the affected circuit.
Is the action complete?
ÐVerify repairÐ

6E±505
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1650 ± Quad Driver Module (QDM) Fault

 
StepNo Ye s Value(s) Action
131. Connect the PCM.
2. Start the engine and let it idle.
3. Backprobe the affected terminal at the PCM with a
DVM.
Was the voltage equal to the specified value?
+BGo to Step 15Go to Step 14
141. Run the engine at idle.
2. Check for battery voltage at the fuse for the affected
circuit.
Was battery voltage available at the fuse?
ÐGo to Step 10Go to Step 9
15Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
On-Vehicle Service in
Powertrain Control Module and Sensors for
procedures.
And also refer to latest Service Bulletin.
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
ÐVerify repairÐ

6E±538
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
On Vehicle
Service Crankshaft Position
(CKP) Sensor
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the electrical connector to the CKP
sensor.
3. Remove one bolt and the CKP sensor from the right
side of the engine block, just behind the mount.
NOTE: Use caution to avoid any hot oil that might drip
out.
TS22909
Inspection Procedure
1. Inspect the sensor O-ring for cracks or leaks.
2. Replace the O-ring if it is worn or damaged.
3. Lubricate the new O-ring with engine oil.
4. Install the lubricated O-ring.
Installation Procedure
1. Install the CKP sensor in the engine block.
2. Install the CKP sensor mounting bolt.
Tighten

Tighten the mounting bolt to 9 N´m (78 lb in.).
TS22909
3. Connect the electrical connector to the CKP sensor.
4. Connect the negative battery cable.
Engine Coolant Temperature
(ECT) Sensor
Removal Procedure
NOTE: Care must be taken when handling the engine
coolant temperature (ECT) sensor. Damage to the ECT
sensor will affect proper operation of the fuel injection
system.
1. Disconnect the negative battery cable.
2. Drain the radiator coolant. Refer to
Draining and
Refilling Cooling System
in Engine Cooling section.
3. Disconnect the electrical connector.
014RY00001

6E±539
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
4. Remove the ECT sensor from the coolant crossover.
014RY00002
Installation Procedure
1. Apply sealer or the equivalent to the threads of the
ECT sensor.
2. Install the ECT sensor in the coolant crossover.
Tighten

Tighten the ECT sensor to 30 N´m (22 lb ft.).
014RY00002
3. Connect the electrical connector.
014RY00003
4. Fill the radiator with coolant. Refer to Draining and
Refilling Cooling System
in Engine Cooling section.
5. Connect the negative battery cable.
Heated Oxygen Sensor (HO2S)
Removal Procedure
1. Disconnect the negative battery cable.
2. Locate the four oxygen sensors.
060RW008

6E±541
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
3. Disconnect the pigtail from the wiring harness.
060RY00128
IMPORTANT:The pigtail is permanently attached to
the sensor. Be careful not to pull the wires out.
NOTE: Do not use a torch to remove an HO2S unless the
sensor is being replaced. Using a torch could damage the
sensor.
4. Remove the sensor from the exhaust pipe.

Because of the expansion and contraction of the
metal in the exhaust system over time, this may be
difficult if the engine temperature is below 48
C
(120
F).
060RY00128
Inspection Procedure
All four sensors are identical. Inspect each in the same
way.
1. Inspect the pigtail and the electrical connector for
grease, dirt, corrosion, and bare wires or worn
insulation.
2. Inspect the louvered end of the sensor for grease,
dirt, or other contaminations.
060RY00128
Installation Procedure
IMPORTANT:

There is a special anti-seize compound on the HO2S
threads. This compound consists of glass beads
suspended in a liquid graphite solution. The graphite
burns away with engine heat, but the glass beads will
remain, making the sensor easier to remove.

New or service sensors will already have the
compound applied to the threads. If a sensor is
removed and is to be reinstalled for any reason, the
threads must have anti-seize compound applied.
1. Apply anti-seize compound or the equivalent to the
threads of the oxygen sensor, if necessary.
2. Install the oxygen sensor on the exhaust pipe in its
original position.
Tighten

Tighten the oxygen sensor to 55 N´m (40 lb ft.).
060RY00128
3. Connect the pigtail to the wiring harness.
4. Connect the negative battery cable.