Opel Frontera UBS. Manual - part 2331

6E–360

6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS

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.

Test Description

Number(s) below refer to the step number(s) on the
Diagnostic Chart.
3. A condition that affects other heated oxygen sensors

indicates probable contamination.  To avoid
damaging replacement sensors, correct the
condition which caused the contamination before
replacing the affected sensors.

5. This step checks for conditions which may cause the

heated oxygen sensor to appear faulty.  Correct any
of the described conditions if present.

8. To avoid damaging replacement sensors, correct the

condition which caused the contamination before
replacing the affected sensors.

DTC P1134 – HO2S Transition Time Ratio Bank 1 Sensor 1

 

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

IMPORTANT: If any DTCs are set (except P1153
and/or P1154), refer to those DTCs before proceeding
with this diagnostic chart.

1. Idle the engine at operating temperature.
2. Operate the vehicle within parameters specified

under “Conditions for Setting the DTC” criteria
included in Diagnostic Support.

3. Using a Tech 2, monitor “DTC” info for DTC P1134

until the DTC P1134 test runs.

4. Note the test result.

Does Tech 2 indicate DTC 1134 failed this ignition?

—

Go to 

Step 3

Check the

Procedure

Refer to

Diagnostic

Aids

3

Did the Tech 2 also indicate P1153, and/or P1154 test
failed?

—

Go to 

Step 17

Go to 

Step 4

4

Check for leaks at the exhaust pipe joints.

Are the joints leaking?

—

Go to 

Step 5

Go to 

Step 6

5

Tighten the U-bolt nuts at the leaking joints.

Is your action complete?

—

Go to 

Step 2

—

6

Check for gaskets that are damaged or improperly
installed.

Are there damaged or misaligned gaskets?

—

Go to 

Step 7

Go to 

Step 8

7

1. Replace the damaged gaskets.
2. Align the connections.
3. Tighten the connections.

Is your action complete?

—

Go to 

Step 2

—

8

Check for loose exhaust flange connections.

Are the flange connections loose?

—

Go to 

Step 9

Go to 

Step 10

9

Tighten the stud nuts or bolts to specifications.

Is your action complete?

—

Go to 

Step 2

—

10

Check for burned or corroded exhaust pipes.

Are the exhaust pipes burned or corroded?

—

Go to 

Step 11

Go to 

Step 12

11

Replace the exhaust pipes, as required.

Is your action complete?

—

Go to 

Step 2

—

6E–361

6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

DTC P1134 – HO2S Transition Time Ratio Bank 1 Sensor 1

  (Cont'd)

Step

No

Yes

Value(s)

Action

12

Check for leaks at the exhaust manifold.

Are there leaks at the exhaust manifold?

—

Go to 

Step 13

Go to 

Step 14

13

Tighten the bolts to specifications or replace the
manifold if necessary.

Is your action complete?

—

Go to 

Step 2

—

14

Visually/physically inspect the following items:

D

Ensure that the Bank 1 HO2S 1 is securely
installed.

D

Check for corrosion on terminals.

D

Check the terminal tension (at Bank 1 HO2S 1
and at the PCM).

D

Check for damaged wiring.

Was a problem found in any of the above areas?

—

Go to 

Step 18

Go to 

Step 15

15

1. Disconnect Bank 1 HO2S 1.
2. Ignition “ON”.
3. Using a DVM at the PCM side of the HO2S 1

connector, measure the voltage between the high
signal circuit and ground.

4. Also measure the voltage between the low signal

circuit and ground.

Are both voltages in the specified range?

3-4V

Go to 

Step 16

Go to 

Step 19

16

1. With Bank 1 HO2S 1 disconnected, jumper the high

and low (PCM side) signal circuits to ground.

2. Ignition “ON”.
3. Using a Tech 2, monitor the Bank 1 HO2S 1 voltage.

Does the Tech 2 indicate less than 10 mV and
immediately return to about 450 mV when the jumper is
removed?

—

Go to 

Step 21

Go to 

Step 22

17

Replace affected heated oxygen sensors.

NOTE: Before replacing sensors, the cause of the
contamination must be determined and corrected.

D

Fuel contamination.

D

Use of improper RTV sealant.

D

Engine oil/coolant consumption.

Is the action complete?

—

Verify repair

—

18

Repair condition as necessary.

Is the action complete?

—

Verify repair

—

19

Check for faulty PCM connections or terminal damage.

Is the action complete?

—

Verify repair

Go to 

Step 20

20

Repair open, short or grounded signal circuit.

Is the action complete?

—

Verify repair

Go to 

Step 7

6E–362

6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS

DTC P1134 – HO2S Transition Time Ratio Bank 1 Sensor 1

  (Cont'd)

Step

No

Yes

Value(s)

Action

21

Replace Bank 1 HO2S 1.

Is the action complete?

—

Verify repair

—

22

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–363

6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Diagnostic Trouble Code (DTC) 

P1153  HO2S Insufficient Switching Bank 2 Sensor 1

D06R200010

Circuit Description

The powertrain control module (PCM) monitors the
heated oxygen sensor (HO2S) activity for 90 seconds
after “closed loop” and stoichiometric operation have
been enabled.  During this test period the PCM counts the
number of times that the HO2S signal voltage crosses the
rich-to-lean and lean-to-rich thresholds.  If the PCM
determines that the HO2S did not switch enough times,
DTC P1153 will be set.
A lean-to-rich switch is determined when the HO2S
voltage changes above and below 450 mV.
Heated oxygen sensors are used to minimize the amount
of time required for “closed loop” fuel control operation
and to allow accurate catalyst monitoring. The oxygen
sensor heater greatly decreases the amount of time
required for fuel control sensors Bank 1 HO2S 1 and Bank
2 HO2S 1 to become active.  Oxygen sensor heaters are
required by post-catalyst monitor sensors to maintain a
sufficiently high temperature for accurate exhaust oxygen
content readings further from the engine.

Conditions for Setting the DTC

D

The engine is operating in “closed loop”,

D

Engine coolant temperature (ECT) is above 60

°

C

(140

°

F).

D

The engine has been running for over 60 seconds.

D

Canister purge duty cycle is greater than 2%.

D

Engine speed is between 1500 RPM and 3000 RPM.

D

Mass air flow is between 8 g/second and 42 g/second.

D

Above conditions are present for a 3 seconds.

D

90 seconds after “closed loop” and stoichiometric
operation have been enabled, the PCM monitors the
oxygen sensor switching above and below 450 mV.  If
fewer than 27 rich-to-lean and lean-to-rich switches for
Bank 2 HO2S 1 are detected, DTC P1153 will set.

Action Taken When the DTC Sets

D

The PCM will illuminate the malfunction indicator lamp
(MIL) after the second consecutive trip in which the
fault is detected.

D

”Open loop” fuel control will be in effect.

D

The PCM will store conditions which were present
when the DTC was set as Freeze Frame and in the
Failure Records data.

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 P1153 will clear after 40 consecutive
warm-up cycles have occurred without a fault.

D

DTC P1153 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the PCM battery
feed.