Nissan Terrano r20e. Instruction — part 192
Wiring Diagram
YEC249A
DTC P0650 MI
TD27Ti
EC-405
Diagnostic Procedure
INSPECTION START
CHECK MI POWER SUPPLY.
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness
connector.
3. Turn ignition switch “ON”.
4. Check voltage between combination
meter terminal
q
28
and ground with
CONSULT-II or tester.
Voltage: Battery voltage
OK
E
NG
Check the following.
I
Fuse block (J/B) con-
nector
F48
(LHD mod-
els)
M756
(RHD models)
I
10A fuse
I
Harness for open or
short between fuse
block (J/B) and combi-
nation meter
If NG, repair harness or
connectors.
CHECK MI OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT.
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM
terminals
215
and combination meter
terminal
q
14
. Refer to Wiring Diagram.
4. Also check harness for short to ground
and short to power.
Continuity should exist.
OK
E
NG
Repair harness or connec-
tors.
CHECK COMBINATION METER.
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness
connector.
3. Check continuity under the following
conditions.
OK
E
NG
Replace combination
meter. Refer to EL section.
Disconnect and reconnect harness con-
nectors in the circuits. Then retest.
Trouble is not fixed.
Check ECM pin terminals for damage and
check the connection of ECM harness
connector. Reconnect ECM harness con-
nector and retest.
INSPECTION END
CONDITION
Terminal No.
(Polarity)
Continuity
1
q
28
(+) -
q
14
(−)
Should not
exist.
2
q
28
(−) -
q
14
(+)
Should
exist.
YEC239A
YEC240A
YEC241A
H
H
H
H
H
H
DTC P0650 MI
TD27Ti
EC-406
Description
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
DTC
Malfunction is detected when ...
Check Items (Possible Cause)
P1107
0802
I
An excessively high or low voltage from
the absolute pressure sensor (built-into
ECM) is sent to ECM.
I
ECM
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch “ON”.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Start engine and wait at least 2 seconds.
WITHOUT CONSULT-II
1) Turn ignition switch “ON” and wait at least 2 seconds.
2) Start engine and wait at least 2 seconds.
3) Turn ignition switch “OFF”, wait at least 5 seconds and then turn
“ON”.
4) Perform “Diagnostic Test Mode II (Self-diagnostic results)” with
ECM.
SEC220B
SEF817Y
DTC P1107 ECM 10
TD27Ti
EC-407
Diagnostic Procedure
INSPECTION START
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “SELF DIAG RESULTS” mode
with CONSULT-II.
3. Touch “ERASE”.
4. Perform “DTC Confirmation Procedure”,
EC-407 again.
5. Is the DTC P1107 displayed again?
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Erase the Diagnostic Test Mode II (Self-
diagnostic results) memory.
3. Perform “DTC Confirmation Procedure”,
EC-407 again.
4. Perform “Diagnostic Test Mode II (Self-
diagnostic results)”.
5. Is the DTC 0802 displayed again?
No
E
Yes
Replace ECM.
INSPECTION END
H
H
DTC P1107 ECM 10
TD27Ti
EC-408
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