Opel Frontera UBS. Manual - part 2323

6E–328

6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS

DTC P0604 – PCM RAM Error

 

Step

Action

Value(s)

Yes

No

1

Was the “On-Board Diagnostic (OBD) System Check”
performed?

—

Go to 

Step 2

Go to 

OBD

System

Check

2

Replace 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?

—

Verify repair

—

6E–329

6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Diagnostic Trouble Code (DTC) P0606 PCM Internal Performance

060RY014

Circuit Description

The input/output devices in the PCM include
analog-to-digital converters, signal buffers, counters, and
special drivers. The PCM controls most components with
electronic switches which complete a ground circuit when
turned “ON”. These switches are arranged in groups of 4
and 7, called either a surface-mounted quad driver
module (QDM), which can independently control up to 4
output terminals, or QDMs which can independently
control up to 7 outputs.

Conditions for Setting the DTC

D

This code detects inconsistencies between Main CPU
A/D converters and Watchdog CPU A/D converters.

Action Taken When the DTC Sets

D

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

D

The PCM will store conditions which were present
when the DTC was set in the Failure Records data only.

Conditions for Clearing the MIL/DTC

D

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

D

A history DTC P0606 will clear after 40 consecutive
warm-up cycles have occurred without a fault.

D

DTC P0606 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the PCM battery
feed.

6E–330

6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS

DTC P0606 – PCM Internal Performance

 

Step

Action

Value(s)

Yes

No

1

Was the “On-Board Diagnostic (OBD) System Check”
performed?

—

Go to 

Step 2

Go to 

OBD

System

Check

2

Replace 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?

—

Verify repair

—

6E–331

6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Diagnostic Trouble Code (DTC) P0660 VIM Solenoid Circuit Open

D06R200089

Circuit Description

The VIM (Variable Intake Manifold) solenoid (intake air
VSV) circuit controls the induction control valve that  the
length of a port is switched. The VIM solenoid is controlled
by the Power Train Control Module (PCM).
When the engine speed is less than 3600 RPM, the VIM
solenoid is “ON” and when the engine speed is more than
3600 RPM, the VSV is “”OFF”. The induction control
valve is closed at the VIM solenoid is “ON”, and it is
opened at the VSV is “OFF”. If the VIM solenoid circuit is
opened, DTC P0660 will set.

Conditions for Setting the DTC

D

The Ignition is “ON”.

D

Ignition voltage is more than 11V.

D

There are 20 test failures within a 28–test sample.

Action Taken When the DTC Sets

D

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

D

The PCM will store conditions which were present
when the DTC was set in the Failure Records data only.

Conditions for Clearing the MIL/DTC

D

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

D

A history DTC P0660 will clear after 40 consecutive trip
cycles during which the warm up cycles have occurs
without a fault.

Diagnostic Aids

Check for following conditions:

D

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.

D

Damaged harness – inspect the wiring harness to the
solenoid and the fuel tank pressure sensor for an
intermittent open short circuit.