Opel Frontera UE. Manual - part 795

 

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Opel Frontera UE. Manual - part 795

 

 

6E1–63

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

No Malfunction Indicator Lamp (MIL)

 

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

Attempt to start the engine.

Does the engine start?

—

Go to Step 3 

Go to Step 6 

3

Check the meter fuse for the instrument cluster ignition
feed circuit.

Is the fuse OK?

—

Go to Step 4 

Go to Step 16

4

1. Ignition ON.
2. Engine OFF.
3. Probe the ignition feed circuit at the cluster

connector with a test light to ground.

Is the test light ON?

—

Go to Step 5 

Go to Step 13

5

1. Ignition OFF.
2. Disconnect the ECM.
3. Jumper the MIL driver circuit at the ECM connector

to ground.

4. Ignition ON.

Is the MIL ON?

—

Go to Step 10

Go to Step 11

6

Check the ECM ignition feed and battery feed fuses
(15A Engine fuse and 15A ECM fuse).

Are both fuses OK?

—

Go to Step 7 

Go to Step 15

7

1. Ignition OFF.
2. Disconnect the ECM.
3. Ignition ON.
4. Probe the ignition feed circuit at the ECM harness

connector with a test light to ground.

Is the test light ON?

—

Go to Step 8 

Go to Step 12

8

Probe the battery feed circuit at the ECM harness
connector with a test light to ground.

Is the test light ON?

—

Go to Step 9 

Go to Step 14

9

Check for a faulty ECM ground connection.

Was a problem found?

—

Verify repair

Go to Step 10

10

Check for damaged terminals at the ECM.

Was a problem found?

—

Verify repair

Go to Step 17

11

Check for an open MIL driver circuit between the ECM
and the MIL.

Was a problem found?

—

Verify repair

Go to Step 18

12

Substitute a known ”good” relay for the ECM main
relay.

Was the malfunction fixed?

—

Verify repair

Go to Step 13

13

Repair the open in the ignition feed circuit.

Is the action complete?

—

Verify repair

—

14

Locate and repair the open ECM battery feed circuit.

Is the action complete?

—

Verify repair

—

6E1–64

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

No Malfunction Indicator Lamp (MIL)

  (Cont'd)

Step

No

Yes

Value(s)

Action

15

Locate and repair the short to ground in the ECM
ignition feed circuit or ECM battery feed circuit.

Is the action complete?

—

Verify repair

—

16

Locate and repair the short to ground in the ignition
feed circuit to the instrument cluster, and replace the
fuse.

Is the action complete?

—

Verify repair

—

17

Replace the ECM.

Is the action complete?

—

Verify repair

—

18

Check the MIL driver circuit for a poor connection at the
instrument panel connector.

Was a problem found?

—

Verify repair

Go to

Instrument

Panel in

Electrical

Diagnosis

6E1–65

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

MALFUNCTION INDICATOR LAMP (MIL) ON STEADY

D06RX110

Circuit Description

The malfunction indicator lamp (MIL) should always be
illuminated and steady with the ignition ON and the
engine stopped. Ignition feed voltage is supplied directly
to the MIL indicator. The engine control module (ECM)
turns the MIL ON by grounding the MIL driver circuit.
The MIL should not remain ON with the engine running
and no DTC(s) set. A steady MIL with the engine running
and no DTC(s) suggests a short to ground in the MIL
driver circuit.

Diagnostic Aids

An intermittent may be caused by a poor connection,
rubbed–through wire insulation, or a wire broken inside
the insulation. Check for the following items:

D

Poor connection or damaged harness – Inspect the
ECM harness and connectors for improper mating,
broken locks, improperly formed or damaged
terminals, poor terminal–to–wire connection, and
damaged harness.

Test Description

Number(s) below refer to the step number(s) on the
Diagnostic Chart:
2. If the MIL does not remain ON when the ECM is

disconnected, the MIL driver wiring is not faulty.

3. If the MIL driver circuit is OK, the instrument panel

cluster is faulty.

6E1–66

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Malfunction Indicator Lamp (MIL) ON Steady

 

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 OFF, disconnect the ECM.
2. Ignition ON, observe the MIL (Service Engine Soon

lamp).

Is the MIL ON?

—

Go to Step 3 

Go to Step 5 

3

1. Ignition OFF, disconnect the instrument panel

cluster.

2. Check the MIL driver circuit between the ECM and

the instrument panel cluster for a short to ground.

3. If a problem is found, repair as necessary.

Was the MIL driver circuit shorted to ground?

—

Go to OBD

System

Check 

Go to Step 4 

4

Replace the instrument panel cluster.

Is the action complete?

—

Go to OBD

System

Check 

—

5

1. Ignition OFF, reconnect the ECM.
2. Ignition ON, reprogram the ECM. Refer to

On–Vehicle Service in Engine Control Module and
Sensors for procedures. 

3. Using the Tech 2 output controls function, select

MIL dash lamp control and command the MIL OFF.

Did the MIL turn OFF?

—

Go to OBD

System

Check 

Go to Step 6 

6

Replace the ECM.

Is the action complete?

—

Go to OBD

System

Check 

—

 

 

 

 

 

 

 

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