Opel Frontera UE. Manual - part 192

 

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Opel Frontera UE. Manual - part 192

 

 

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 

6E1–67

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

ENGINE CRANKS BUT WILL NOT RUN

D06RX099

6E1–68

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

D06RX091

6E1–69

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Circuit Description

The electronic ignition system uses a dual coil method of
spark distribution. In this type of ignition system, the
engine control module (ECM) triggers the correct driver
inside the ignition control module (ICM), which then
triggers the correct ignition coil based on the 58X signal
received from the crankshaft position sensor (CKP). The
spark plug connected to the coil fires when the ICM opens
the ground circuit for the coil’s primary circuit.
During crank, the ECM monitors the CKP 58X signal. The
CKP signal is used to determine which cylinder will fire
first. After the CKP 58X signal has been processed by the
ECM, it will command all four injectors to allow a priming
shot of fuel for all the cylinders. After the priming, the
injectors are left OFF during the next four 58X reference
pulses from the CKP. This allows each cylinder a chance
to use the fuel from the priming shot. During this waiting
period, a camshaft position (CMP) signal pulse will have
been received by the ECM. The CMP signal allows the
ECM to operate the injectors sequentially based on
camshaft position. If the camshaft position signal is not
present at start–up, the ECM will begin sequential fuel
delivery with a 1–in–4 chance that fuel delivery is correct.
The engine will run without a CMP signal, but will set a
DTC code.

Diagnostic Aids

An intermittent problem 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.

D

Faulty engine coolant temperature sensor – Using a
Tech 2, compare engine coolant temperature with
intake air temperature on a completely cool engine.
Engine coolant temperature should be within 10

°

C of

intake air temperature. If not, replace the ECT sensor.

 

 

 

 

 

 

 

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