Opel Frontera UBS. Service manual — part 2453
6E–126
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P0380 (Flash DTC 66)
Glow Relay Circuit Open/Short
060RW132
Circuit Description
Glow relay circuit receives current through Glow 50A fuse
from the battery. Glow relay is circuited to Glow plug.
Action Taken When the DTC Sets
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 P0380 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the ECM battery
feed.
Diagnostic Aids
An intermittent may be caused by a poor connection,
rubbed-through wire insulation or a wire broken inside the
insulation. Check for:
D
Poor connection – Inspect the ECM harness and
connectors for improper mating, broken locks,
improperly formed or damaged terminals, and poor
terminal-to-wire connection.
D
Damaged harness – Inspect the wiring harness for
damage.
6E–127
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
DTC P0380 – Glow Relay Circuit Open/Short
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
Chart 3
3
1. Review and record Failure Records information.
2. Clear DTC P0380.
3. Start the engine and idle for 1 minute.
4. Observe DTCs.
Is DTC P0380 set?
—
Go to
Step 4
Refer to
Diagnostic
Aid
4
Check the glow fuse 50A.
Is the glow fuse 50A damage?
—
Go to
Step 5
Go to
Step 6
5
Replace the glow fuse 50A.
Is the action complete?
—
Verify repair
Go to
Step 6
6
1. Ignition “OFF.”
2. Check for an open or a short to ground in the Glow
relay circuit between the Glow relay connector and
the ECM harness connector.
3. If a problem is found, repair as necessary.
Was a problem found?
—
Verify repair
Go to
Step 7
7
Check the connections at the Glow relay and replace
the terminals if necessary.
Did any terminals require replacement?
—
Verify repair
Go to
Step 8
8
Replace the Glow relay.
Is the action complete?
—
Verify repair
Go to
Step 9
9
Check the connections at the ECM and replace the
terminals if necessary.
Did any terminals require replacement?
—
Verify repair
Go to
Step 10
10
Replace the ECM (Refer to the Data Programming in
Case of ECM change).
Is the action complete?
—
Verify repair
—
6E–128
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P0381 (Flash DTC 67)
Glow Lamp Circuit Open/Short
060RW136
Circuit Description
Glow Lamp Circuit receives current through Meter 10A
fuse, Glow lamp being circuited to ECM.
Action Taken When the DTC Sets
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 P0381 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the ECM battery
feed.
Diagnostic Aids
An intermittent may be caused by a poor connection,
rubbed-through wire insulation or a wire broken inside the
insulation. Check for:
D
Poor connection – Inspect the ECM harness and
connectors for improper mating, broken locks,
improperly formed or damaged terminals, and poor
terminal-to-wire connection.
D
Damaged harness – Inspect the wiring harness for
damage.
6E–129
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
DTC P0381 – Glow Lamp Circuit Open/Short
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. Review and record Failure Records information.
2. Clear DTC P0381.
3. Observe DTCs.
Is DTC P0381 set?
—
Go to
Step 3
Refer to
Diagnostic
Aid
3
1. Ignition “OFF.”
2. Remove the Meter assembly.
3. Check for an open or a short to ground in the Glow
Lamp circuit.
4. If a problem is found, repair as necessary.
(On electric bulb of the Glow Lamp, The Glow Lamp
harness circuit)
Was a problem found?
—
Refer to the
Meter in
Electric
section 8
Go to
Step 4
4
Check the connections at the ECM and replace the
terminals if necessary.
Did any terminals require replacement?
—
Verify repair
Go to
Step 5
5
Replace the ECM (Refer to the Data Programming in
Case of ECM change).
Is the action complete?
—
Verify repair
—
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