
Self-diagnosis
FUNCTION
+When a problem occurs in the ABS, the warning lamp on the
instrument panel comes on. To start the self-diagnostic
results mode, ground the self-diagnostic (check) terminal
located on ªData Link Connectorº. The location of the mal-
function is indicated by the warning lamp flashing.
+While DIFF-LOCK is on, anti-lock warning light flashes.
SELF-DIAGNOSIS PROCEDURE
Turn off DIFF-LOCK switch.
Drive vehicle over 30 km/h (19 MPH) for
at least one minute.
Turn ignition switch ªOFFº.
Ground terminal ª9º of ªData link connec-
torº with a suitable harness.
Turn ignition switch ªONº while ground-
ing terminal ª9º.
Do not depress brake pedal.
After 3.0 seconds, the warning lamp
starts flashing to indicate the malfunction
code No. (See NOTE.)
Verify the location of the malfunction
with the malfunction code chart. Refer to
the original Service Manual. Then make
the necessary repairs following the diag-
nostic procedures.
After the malfunctions are repaired,
erase the malfunction codes stored in
the control unit. Refer to the original Ser-
vice Manual.
Rerun the self-diagnostic results mode to
verify that the malfunction codes have
been erased.
Disconnect the check terminal from the
ground. The self-diagnostic results mode
is now complete.NOTE: The indication terminates
after five minutes.
However, when the ignition
switch is turned from
ªOFFº to ªONº, the indica-
tion starts flashing again.
VA
SBR679E
SBR186E
SBR679E
.
.
.
.
.
.
.
.
.
TROUBLE DIAGNOSES
BR-1008

CONSULT-II Reference Value in Data Monitor
Mode
Remarks:
+Specification data are reference values.
+Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
MONITOR ITEM CONDITION SPECIFICATION
CKPSzRPM (TDC)
+Tachometer: Connect
+Run engine and compare tachometer indication with the CONSULT-II value.Almost the same speed as the
CONSULT-II value.
CMPSzRPM-PUMP
COOLAN TEMP/S+Engine: After warming up More than 70ÉC (158ÉF)
VHCL SPEED SE+Turn drive wheels and compare speedometer indication with the CONSULT-II valueAlmost the same speed as the
CONSULT-II value
FUEL TEMP SEN+Engine: After warming up More than 40ÉC (104ÉF)
ACCEL POS SEN+Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released 0.40 - 0.60V
Accelerator pedal: fully depressed Approx. 4.5V
FULL ACCEL SW+Ignition switch: ON
(Engine stopped)Accelerator pedal: fully depressed ON
Except above OFF
ACCEL SW (FC)+Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released CLOSE
Accelerator pedal: slightly open OPEN
OFF ACCEL SW+Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released ON
Accelerator pedal: slightly open OFF
SPILL/V+Engine: After warming up Approx. 13ÉCA
BATTERY VOLT+Ignition switch: ON (Engine stopped) 11 - 14V
P/N POSI SW+Ignition switch: ONShift lever: Park/Neutral ON
Except above OFF
START SIGNAL+Ignition switch: ON®START®ON OFF®ON®OFF
AIR COND SIG+Engine: After warming up, idle the
engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)ON
BRAKE SW+Ignition switch: ONBrake pedal: depressed ON
Brake pedal: released OFF
IGN SW+Ignition switch: ON®OFF ON®OFF
WARM UP SW+Ignition switch: ONHeat up switch: ON ON
Heat up switch: OFF OFF
MAS AIR/FL SE+Engine: After warming up
+Air conditioner switch: OFF
+Shift lever: Neutral position
+No-loadIdle 1.6 - 2.0V
DECELER F/CUT+Engine: After warming up Idle OFF
INJ TIMG C/V+Engine: After warming up, idle the engine. Approx. 50 - 70%
AIR COND RLY+Engine: After warming up, idle the
engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)ON
GLOW RLY+Refer to EC-1221.
COOLING FAN+When cooling fan is stopped. OFF
+When cooling fan operates. ON
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
EC-1065

Wiring Diagram Codes (Cell Codes)
Use the chart below to find out what each wiring diagram code
stands for.
Refer to the wiring diagram code in the alphabetical index to find
the location (Page number) of each wiring diagram.
Code Section Wiring Diagram Name
A/C,A HA Auto Air Conditioner
A/C,M HA Manual Air Conditioner
A/CCUT EC Air Conditioner Control
A/T AT A/T
ABS BR Anti-lock Brake System
ACC/SW EC Accelerator Switch (FC)
ACL/SW EC Accelerator Position Switch
APS EC Accelerator Position Sensor
ASCD EL Automatic Speed Control Device
AT/C EC A/T Control
BACK/L EL Back-up Lamp
BCDD EC BCDD System
BOOST EC Turbo Charger Boost Sensor
BRK/SW EC Brake Switch Signal
CHARGE EL Charging System
CHIME EL Warning Chime
CHOKE EC Automatic Choke
CKPS EC Crankshaft Position Sensor (OBD)
COOL/B HA Cool Box
COOL/F EC Cooling Fan Control
CORNER EL Cornering Lamp
DEF EL Rear Window Defogger
DIFF/L PD Differential Lock Control System
DTRL ELHeadlamp Ð With Daytime Light
System
ECMRLY EC ECM Relay
ECTS EC Engine Coolant Temperature Sensor
EGVC/V EC EGR Volume Control Valve
EXH ECExhaust Gas Control Valve Control
Solenoid Valve
F/FOG EL Front Fog Lamp
F/PUMP EC Fuel Pump
FCUT EC Fuel Cut System
FICD EC IACV-FICD Solenoid Valve
FIPOT EC ISC-FI POT
FPCM EC Fuel Pump Control Module
GLOW EC Quick Glow System
HEATER HA Heater System
HEATUP EC Heat up SwitchCode Section Wiring Diagram Name
HLC EL Headlamp Wiper and Washer
HORN EL Horn
IGN EC Ignition Control System
ILL EL Illumination
INJPMP ECElectronic Control Fuel Injection
Pump
INT/V ECIntake Air Control Valve Control
Solenoid Valve
MAFS EC Mass Air Flow Sensor
MAIN ECMain Power Supply and Ground Cir-
cuit
METER ELSpeedometer, Tachometer, Temp.,
Oil and Fuel Gauges
MIL/DL EC Mil and Data Link Connectors
MULTI EL Multi-remote Control System
NATS EL Nissan Anti-Theft System
P/ANT EL Power Antenna
PNP/SW EC Park/Neutral Position Switch
POWER EL Power Supply Routing
R/COOL HA Rear Cooler System
R/FOG EL Rear Fog Lamp
R/HEAT HA Rear Heater System
REMOTE EL Audio (Remote Control Switch)
ROOM/L EL Interior Room Lamp
S/LOCK EL Power Door Lock Ð Super Lock
S/SIG EC Start Signal
S/TANK FE Sub Fuel Tank Control System
SHIFT AT A/T Shift Lock System
SRS RS Supplemental Restraint System
STAB RA Stabilizer Release Device
START EL Starting System
STOP/L EL Stop Lamp
SWL/V ECSwirl Control Valve Control Solenoid
Valve
TAIL/L EL Parking, License and Tail Lamps
TURN ELTurn Signal and Hazard Warning
Lamps
VSS EC Vehicle Speed Sensor
WARN EL Warning Lamps
WIRING DIAGRAM CODES (CELL CODES)
EL-1227

A
A/T - Wiring diagram ............................. AT-1009
A/T control ............................................. EC-1148
A/T fluid temperature sensor ................. AT-1081
A/T mode switch .................................... AT-1095
A/T self-diagnoses ................................. AT-1028
A/T shift lock system - Wiring
diagram .............................................. AT-1117
A/T shift lock system ............................. AT-1116
A/T trouble diagnoses ........................... AT-1036
APS - Wiring diagram ........................... EC-1125
ASCD (automatic speed control
device) ............................................... EL-1110
ASCD - Wiring diagram ......................... EL-1111
AT/C - Wiring diagram .......................... EC-1150
Accelerator control system .................... FE-1007
Accelerator position sensor .................. EC-1125
Air bag disposal .................................... RS-1015
Air bag precautions ................................ GI-1002
Air bag ................................................... RS-1003
Air cleaner filter replacement ............... MA-1019
Air conditioner cut control ..................... EC-1021
Air flow meter - See Mass air flow
sensor ................................................ EC-1086
Alternator ............................................... EL-1041
Angular tightening application .............. EM-1003
Anti-lock brake system - Wiring
diagram ............................................. BR-1002
Audio ...................................................... EL-1108
Automatic speed control system - See
ASCD ................................................. EL-1110
Automatic transmission fluid
replacement ...................................... MA-1021
B
BACK/L - Wiring diagram ...................... EL-1051
BOOST - Wiring diagram ...................... EC-1204
Back-up lamp ......................................... EL-1051
Basic inspection .................................... EC-1049
Battery ................................................... EL-1035
Boring/horning cylinder block ............... EM-1075
C
CHARGE - Wiring diagram ................... EL-1040
CKPS - Wiring diagram ........................ EC-1140
CONSULT for engine ............................ EC-1038
CONSULT general information .............. GI-1003
COOL/F - Wiring diagram ..................... EC-1105
CORNER - Wiring diagram ................... EL-1054
Camshaft inspection ............................. EM-1032
Charging system .................................... EL-1040
Chassis and body maintenance ........... MA-1020
Clutch operating cylinder ....................... CL-1003
Collision diagnosis ................................ RS-1052
Combination meter ................................ EL-1073Combination switch ............................... EL-1042
Compression pressure ......................... EM-1010
Compressor mounting ........................... HA-1023
Connecting rod bearing clearance ....... EM-1078
Connecting rod bushing clearance ....... EM-1074
Connecting rod ..................................... EM-1074
Control valve (A/T) ................................ AT-1148
Converter housing installation ............... AT-1128
Coolant mixture ratio ............................ MA-1010
Coolant replacement ............................ MA-1014
Cooling fan control ................................ EC-1105
Cornering lamp ...................................... EL-1054
Crankcase emission control system -
See Positive crankcase ventilation ... EC-1022
Crankcase ventilation system - See
Positive crankcase ventilation ........... EC-1022
Crankshaft position sensor (TDC) ........ EC-1140
Crankshaft ............................................ EM-1077
Cruise control - See ASCD ................... EL-1110
Cylinder block boring ............................ EM-1020
Cylinder block ....................................... EM-1067
Cylinder head bolt tightening ................ EM-1034
Cylinder head ....................................... EM-1053
D
DEF - Wiring diagram ............................ EL-1102
DTRL - Wiring diagram ......................... EL-1044
Data link connector for Consult ............ EC-1038
Daytime light system ............................. EL-1044
Diagnosis sensor unit ........................... RS-1008
Diagnostic trouble code (DTC) for
OBD system ...................................... EC-1032
Dome light - See Interior lamp .............. EL-1067
Door mirror ............................................ BT-1007
Door trim ................................................ BT-1004
Drive belt inspection ............................. MA-1011
Drive plate runout ................................. EM-1095
Dropping resistor (A/T) .......................... AT-1086
E
ECCS-D control module .. EC-1068, 1117, 1189,
1191, 1196, 1200
ECM input/output signal ........................ EC-1068
ECTS - Wiring diagram ......................... EC-1092
EGR - Wiring diagram .......................... EC-1209
EGR volume control valve .................... EC-1207
Electrical unit ......................................... EL-1231
Electrical units location .......................... EL-1185
Electronic fuel injection pump .... EC-1119, 1153,
1159, 1165, 1171, 1177, 1180, 1215
Engine control circuit diagram .............. EC-1015
Engine control component parts
location .............................................. EC-1011
Engine control system diagram and
chart .................................................. EC-1016
ALPHABETICAL INDEX
IDX-1002