Nissan Terrano model r20 series 2004. Instruction — part 176
Component Inspection
STOP LAMP SWITCH AND BRAKE SWITCH 2
1. Turn ignition switch to “LOCK” position.
2. Disconnect switch connectors.
3. Check continuity between terminals
q
1
and
q
2
.
Continuity:
Brake pedal
Stop lamp switch
Brake switch 2
Released
No
No
Depressed
Yes
Yes
If NG, replace stop lamp switch or brake switch.
MEC968D
DTC P0571 BRAKE SW
TD27Ti
EC-426
Component Description
Malfunction Indicator (MI) is located on the instrument panel. When the ignition switch is turned ON without
engine running, MI will light up. This is a bulb check. When the engine is started, MI should go off. If MI remains
on, the on board diagnostic system has detected an engine system malfunction.
On Board Diagnosis Logic
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0650
0907
Malfunction indicator (MI) control cir-
cuit
I
An excessively high voltage is sent
to ECM through the MI circuit
under the condition that calls for MI
light up.
I
An excessively low voltage is sent
to ECM through the MI circuit
under the condition that calls for MI
not to light up.
I
Harness or connectors
(MI circuit is open or shorted.)
I
MI
DTC Confirmation Procedure
NOTE:
If
“DTC
Confirmation
Procedure”
has
been
previously
conducted, always turn ignition switch “OFF” and wait at least
10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for 2 second.
WITHOUT CONSULT-II
1. Turn ignition switch “ON”.
2. Perform “Diagnostic Test Mode II” (Self-diagnostic results).
3. Start engine and let it idle for 2 second.
4. Perform “Diagnostic Test Mode II” (Self-diagnostic results).
SEF817Y
DTC P0650 MI
TD27Ti
EC-427
Wiring Diagram
YEC249A
DTC P0650 MI
TD27Ti
EC-428
Diagnostic Procedure
INSPECTION START
CHECK MI POWER SUPPLY.
1. Turn ignition switch “LOCK”.
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 “LOCK”.
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 “LOCK”.
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-429
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