Opel Frontera UE. Manual - part 356

6E2–230

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

DTC P0502 –VSS Circuit Low Input

  (Cont'd)

Step

No

Yes

Value(s)

Action

10

1. Ignition “OFF.”
2. Disconnect the MAF sensor.  The connector

attaches the VSS wires from the transmission
harness to the left-side engine harness.

3. Disconnect the green 16-way connector.
4. Select a terminal adapter from kit 5-8840-0385-0

that can be used with a jumper to supply B+ to the
yellow (transmission side of the connector).  There
are 2 yellow wires at that connector, but the correct
one is in the corner position.

5. Use another terminal adapter to attach a voltmeter

to the blue wire with a black tracer (next to the wire in
the previous step.)

6. At the transmission side of the green 16-way

connector, locate the black wire next to the VSS
yellow ign+ wire. The black wire is the VSS ground
wire. Use a terminal adapter to attach a jumper to
ground to the black VSS ground wire at the
transmission side of the connector.

7. Raise the rear wheels off the ground with

transmission in neutral.

Does the DVM toggle back and forth between 0.6 V and
10 V as the wheels (and driveshaft) are rotated?

—

Go to 

Step 12

Go to 

Step 11

11

Replace the VSS.

Is the action complete?

—

Verify repair

—

12

Check for an open or short between the PCM and the
speedometer.

Was a problem found?

—

Verify repair

Go to 

Step 13

13

Replace the PCM.

Is the action complete?

—

Verify repair

—

6E2–231

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

Diagnositc Troule Code (DTC) P0562 System Voltage Low

D06RX022

Circuit Description

The powertrain control module (PCM) monitors the
system voltage on the ignition feed terminal to the PCM.
A system voltage DTC will set whenever the voltage is
below a calibrated value.

Conditions for Setting the DTC

D

Ignition “ON.”

D

System voltage is below 11.5 volts for 15 minutes.

Action Taken When the DTC Sets

D

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

D

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

Conditions for Clearing the MIL/DTC

D

A history DTC P0562 will clear after 40 consecutive
warm-up cycles have occurred without a fault.

D

DTC P0562 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the PCM battery
feed.

Diagnostic Aids

If the DTC sets when an accessory is operated, check for
a poor connection or excessive current draw.

6E2–232

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

DTC P0562 – System Voltage Low

 

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

Using a DVM, measure the battery voltage at the
battery.

Is the battery voltage greater than the specified value?

11.5 V

Go to 

Step 3

Charge

battery, then

go to 

Step 3

3

1. Install a Tech 2.
2. Select “Ignition Volts” on the Tech 2.
3. Start the engine and raise the engine speed to the

specified value.

4. Load the electrical system by turning on the

headlights, high blower, etc.

Is the ignition voltage approximately equal to the
specified value?

2000 RPM

12.8-14.1 V

Go to 

Step 4

Go to

Starting/Char

ging

4

1. Ignition “OFF.”
2. Disconnect the PCM connector at the PCM.
3. Using a DVM, measure the battery voltage at the

PCM connector A-4.

Is it approximately equal to battery voltage?

—

Check for

excessive

current draw

with ignition

“OFF,” engine

“OFF.”

Go to 

Step 5

5

1. Check for faulty connections at the PCM harness

terminals.

2. Repair as necessary.

Was a repair necessary?

—

Verify repair

Go to 

Step 6

6

Check for an open battery feed circuit to the PCM.

Is the action complete?

—

Verify repair

Go to 

Step 7

7

Replace the PCM.

Is the action complete?

—

Verify repair

—

6E2–233

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

Diagnostic Trouble Code (DTC) P0563 System Voltage High

Circuit Description

The powertrain control module (PCM) monitors the
system voltage on the ignition feed terminals to the PCM.
A system voltage DTC will set whenever the voltage is
above a calibrated value.

Conditions for Setting the DTC

D

Ignition “ON.”

D

System voltage is above 16 volts for 15 minutes.

Action Taken When the DTC Sets

D

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

D

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

Conditions for Clearing the MIL/DTC

D

A history DTC P0563 will clear after 40 consecutive
warm-up cycles have occurred without a fault.

D

DTC P0563 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the PCM battery
feed.

Diagnostic Aids

If the DTC sets when an accessory is operated, check for
a poor connection or defective accessory.

DTC P0563 – System Voltage High

 

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

Using a DVM, measure the battery voltage at the
battery.

Is the battery voltage less than the specified value?

11.5 V

Go to 

Step 3

Go to 

Step 4

3

1. Charge the battery and clean the battery terminals.
2. Clean the battery ground cable connection if

corrosion is indicated.

Is the battery voltage less than the specified value?

11.5 V

Replace

battery

Go to 

Step 4

4

1. Turn “OFF” all the accessories.
2. Install a Tech 2.
3. Select the ignition voltage parameter on the Tech 2.
4. Start the engine and raise the engine RPM to the

specified value.

Is the voltage more than 2.5 volts greater than the
measurement taken in step 2 or 3?

2000 RPM

Go to

Starting/Char

ging

Go to 

Step 5

5

Replace the PCM.

Is the action complete?

—

Verify repair

—