Opel Frontera UBS. Manual - part 508

6E–162

4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS

DTC P1587 – Brake SW Malfunction

 

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

1. Ignition “ON,” engine “OFF.”
2. Review and record Tech 2 Failure Records data.
3. Operate the vehicle within Failure Records

conditions as noted.

4. Using a Tech 2, monitor the “DTC” info for DTC

P1587.

Does the Tech 2 indicate DTC P1587 failed?

—

Go to 

Step 3

Refer to

Diagnostic

Aids

3

Check the Brake SW circuit for a poor connection and
replace the terminal if necessary.

Did the terminal require replacement?

—

Verify repair

Go to 

Step 4

4

Replace the Brake SW.

Is the action complete?

—

Verify repair

—

6E–163

4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS

Diagnostic Trouble Code (DTC) P1588 (Flash DTC 25) 

Brake SW Malfunction

060RW130

Circuit Description

Brake Stop Lamp SW Circuit receives through Stop Lamp
10A fuse from the battery.

Action Taken When the DTC Sets

D

The ECM will illuminate the malfunction indicator lamp
(MIL) the first time the fault is detected.

D

The ECM 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

DTC P1588 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the ECM battery
feed.

Diagnostic Aids

Check for the following conditions:

D

Poor connection at ECM – 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 for
damage.  If the harness appears to be OK, observe the
Brake SW display on the Tech 2 while moving
connectors and wiring harnesses related to the Brake
SW.  A change in the display will indicate the location
of the fault.

If DTC P1588 cannot be duplicated, the information
included in the Failure Records data can be useful in
determining vehicle mileage since the DTC was last set.

6E–164

4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS

DTC P1588 – Brake SW Malfunction

 

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

1. Ignition “ON,” engine “OFF.”
2. Review and record Tech 2 Failure Records data.
3. Operate the vehicle within Failure Records

conditions as noted.

4. Using a Tech 2, monitor the “DTC” info for DTC

P1588.

Does the Tech 2 indicate DTC P1588 failed?

—

Go to 

Step 3

Refer to

Diagnostic

Aids

3

Check the Brake SW circuit for a poor connection and
replace the terminal if necessary.

Did the terminal require replacement?

—

Verify repair

Go to 

Step 4

4

Replace the Brake SW.

Is the action complete?

—

Verify repair

—

6E–165

4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS

Diagnostic Trouble Code (DTC) P0601 (Flash DTC 55) 

ECM Checksum Error

Action Taken When the DTC Sets

D

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

D

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

Conditions for Clearing the MIL/DTC

D

DTC P0601 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the ECM battery
feed.

Diagnostic Aids

D

DTC P0601 indicates that the contents of the
EEPROM have changed since the ECM was
programmed. The only possible repair is ECM
replacement. Remember to program the replacement
ECM with the correct software and calibration for the
vehicle.

DTC P0601 – ECM Checksum 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 ECM (Refer to the Data Programming in
Case of ECM change).

Is the action complete?

—

Verify repair

—