immobilizer OPEL FRONTERA 1998 Service Manual

6E–211 ENGINE DRIVEABILITY AND EMISSIONS
DTC P0352 – Ignition 2 Control Circuit
StepNo Ye s Va l u e ( s ) Action
11Check for an open ignition control circuit 1.
Was the ignition control circuit open?
—Go to Step 12Go to Step 13
12Repair the open ignition control circuit.
Is the action complete?
—Verify repair—
13Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–214
ENGINE DRIVEABILITY AND EMISSIONS
DTC P0353 – Ignition 3 Control Circuit
StepNo Ye s Va l u e ( s ) Action
11Check for an open ignition control circuit 1.
Was the ignition control circuit open?
—Go to Step 12Go to Step 13
12Repair the open ignition control circuit.
Is the action complete?
—Verify repair—
13Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–217 ENGINE DRIVEABILITY AND EMISSIONS
DTC P0354 – Ignition 4 Control Circuit
StepNo Ye s Va l u e ( s ) Action
11Check for an open ignition control circuit 1.
Was the ignition control circuit open?
—Go to Step 12Go to Step 13
12Repair the open in ignition control circuit.
Is the action complete?
—Verify repair—
13Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–220
ENGINE DRIVEABILITY AND EMISSIONS
DTC P0355 – Ignition 5 Control Circuit
StepNo Ye s Va l u e ( s ) Action
11Check for an open ignition control circuit 1.
Was the ignition control circuit open?
—Go to Step 12Go to Step 13
12Repair the open ignition control circuit.
Is the action complete?
—Verify repair—
13Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–223 ENGINE DRIVEABILITY AND EMISSIONS
DTC P0356 – Ignition 6 Control Circuit
StepNo Ye s Va l u e ( s ) Action
11Check for an open ignition control circuit 1.
Was the ignition control circuit open?
—Go to Step 12Go to Step 13
12Repair the open ignition control circuit.
Is the action complete?
—Verify repair—
13Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–227 ENGINE DRIVEABILITY AND EMISSIONS
DTC P0404 – EGR Open Stuck
StepActionVa l u e ( s )Ye sNo
1Was the “On-Board Diagnostic (OBD) System Check”
performed?
—Go to Step 2
Go to OBD
System
Check
21. Ignition “ON,” engine “OFF”, review and record
Tech 2 Failure Records Data.
2. Operate the vehicle within Failure Records
conditions as noted.
3. Using Tech 2, monitor “Specific DTC” info for DTC
P0404 until the DTC P0404 test runs. Note the
result.
Does Tech 2 indicates DTC P0404 failed this ignition?
—Go to Step 3
Refer to
Diagnostic
Aids
31. Disconnect the EGR valve harness connector.
2. Inspect the EGR valve and connectors for damaged
pin or terminals.
Were there any damaged pins or terminals?
—Go to Step 4Go to Step 5
4Repair the damaged pin or terminal.
—Verify repair
Is the action
complete?
51. Remove EGR valve from Engine.
2. Inspect EGR valve whether there is any excessive
carbon deposit on EGR shaft.
Was excessive carbon deposit 0n EGR valve shaft?
—Go to Step 6Go to Step 7
61. Clean up EGR valve shaft and inside of EGR valve.
2. Visually inspect damage of pintle and seat whether
there is bent, leakage may occur.
Was there any severe damage which affects function?
—Go to Step 8
Verify repair
Go to
Step 7
71. Reconnect.
2. Ignition “OFF”.
3. Install Tech 2.
4. Run the engine at idle.
5. On Tech 2, select F3:Misc. Test; F2:EGR.
6. Use the “UP” arrow to increase the EGR from 0% to
40%.
Did EGR work properly?
——Go to Step 8
8Replace the EGR valve.
Does DTC P0404 still fail “DTC” test on Tech 2?
—Go to Step 9Verify repair
9Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–230
ENGINE DRIVEABILITY AND EMISSIONS
DTC P0405 – EGR Low Volt
StepNo Ye s Va l u e ( s ) Action
121. Ignition “ON”.
2. Backprobe with a DVM to measure voltage at PCM
sensor ground pin and pintle position pin.
Was voltage in range?
Less than
0.1 V
Go to Step 13Go to Step 18
131. Ignition “OFF”.
2. Disconnect the EGR harness.
3. Check short circuit between EGR pintle position
circuit and EGR ground circuit.
Was any short circuit?
—Go to Step 14Go to Step 18
14Locate and repair the short to ground in the pintle
position circuit
Is the action complete?
—Verify repair—
151. Ignition “OFF”.
2. Disconnect the PCM.
3. Ignition “ON”.
4. Measure the voltage between the EGR pintle
position circuit and ground.
Is the measured voltage near the specified value?
Less than
0.1 V
Go to Step 17Go to Step 16
16Check for a short circuit between other wires and the
pintle position circuit
Was any short circuit?
—
Repair short
circuit
Verify repair
Go to Step 17
17Replace the EGR valve.
Does DTC P1404 still fail “specific DTC test on Tech 2?
—Go to Step 18Verify repair
18Examine the PCM pin and terminal connection.
Was there a damaged terminal?
—Go to Step 4Go to Step 19
19Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–233 ENGINE DRIVEABILITY AND EMISSIONS
DTC P0406 – EGR High Voltage
StepNo Ye s Va l u e ( s ) Action
111. Ignition “ON”.
2. Use a DVM to backprobe at terminal C of EGR
valve for voltage.
Was measured voltage more than 4.8 V?
more than
4.8 V
Go to Step 12Go to Step 12
121. Ignition “ON”.
2. Stay the EGR harness connected.
3. Check voltage by backproving at PCM B7 terminal.
Was voltage more than 4.8 V?
4.8 VGo to Step 16Go to Step 13
131. Locate short circuit at EGR harness between RED
to RED or GREEN, RED to YEL.
2. Replace EGR harness.
Is the action complete?
—Verify repair—
14Replace EGR harness.
Is the action complete?
—Verify repair—
15Replace the EGR valve.
Does DTC P1404 still fail “specific DTC test on Tech 2?
—Go to Step 16Verify repair
16Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–236
ENGINE DRIVEABILITY AND EMISSIONS
DTC P0502 – VSS Circuit Low Input
StepNo Ye s Va l u e ( s ) Action
101. Ignition “OFF.”
2. Disconnect the MAF sensor and remove the air
cleaner assembly and filter element to gain access
to the 16-way black connector located immediately
to the rear of the left front headlamp. The connector
attaches the VSS wires from the transmission
harness to the left-side engine harness.
3. Disconnect the black 16-way connector.
4. Select a terminal adapter from kit J 35616 that can
be used with a jumper to supply B+ to the blue wire
with a yellow tracer (transmission side of the
connector).
5. Use another terminal adapter to attach a voltmeter
to the light-green wire with a w h i l e t r a c e r ( n e x t t o t h e
wire in the previous step.)
6. Disconnect the blue connector next to the black
16-way connector, and locate the black/red tracer
wire at one corner of the blue connector. The
black/red wire is the VSS ground. Use a terminal
adapter to attach a jumper to ground to the
black/red VSS ground wire at the transmission side
of the blue connector.
7. Raise the rear wheels off the ground with
transmission in neutral.
Does the DVM toggle back and forth between 0.6 V and
10 V as the wheels (and driveshaft) are rotated?
—Go to Step 11Go to Step 12
11Replace the VSS.
Is the action complete?
—Verify repair—
12Check for an open or short between the PCM and the
speedometer.
Was a problem found?
—Verify repairGo to Step 13
13Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—

6E–238
ENGINE DRIVEABILITY AND EMISSIONS
DTC P0562 – System Voltage Low
StepActionVa l u e ( s )Ye sNo
1Was the “On-Board Diagnostic (OBD) System Check”
performed?
—Go to Step 2
Go to OBD
System
Check
2Using a Tech 2, measure the battery voltage at the
battery.
Is the battery voltage greater than the specified value?
11.5 VGo to Step 3
Charge
battery, then
go to
Step 3
31. Using a Tech 2.
2. Select “Ignition Volts” on the Tech 2.
3. Start the engine and raise the engine speed to the
specified value.
4. Load the electrical system by turning on the
headlights, high blower, etc.
Is the ignition voltage approximately equal to the
specified value?
2000 RPM
12.8-14.1 V
Go to Step 4
Go to
Starting/Char
ging
41. Ignition “OFF.”
2. Disconnect the PCM connector at the PCM.
3. Using a DVM, measure the battery voltage at the
PCM connector A-4.
Is it approximately equal to battery voltage?
—
Check for
excessive
current draw
with ignition
“OFF,” engine
“OFF.”
Go to Step 5
51. Check for faulty connections at the PCM harness
terminals.
2. Repair as necessary.
Was a repair necessary?
—Verify repairGo to Step 6
6Check for an open battery feed circuit to the PCM.
Is the action complete?
—Verify repairGo to Step 7
7Replace the PCM.
IMPORTANT:The replacement PCM must be
programmed. Refer to
UBS 98model year Immobilizer
Workshop Manual.
Is the action complete?—Verify repair—