AT-192
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
3. DETECT MALFUNCTIONING ITEM
Check the following items:
Harness for short or open between battery and A/T assembly harness connector terminals 1, 2.
Harness for short or open between ignition switch and A/T assembly harness connector terminal 6
10A fuse (No.37, located in the fuse and fusible link box)
10A fuse (No.83, located in the IPDM E/R)
Ignition switch, Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Check continuity between A/T assembly harness connector terminals 5(B), 10(B) and ground. Refer to
AT- 1 3 0 , "
Wiring Diagram — AT — POWER" .
4. If OK, check the harness for short circuit to ground or the power
source.
OK or NG
OK >> GO TO 5.
NG >> Repair the open or short circuit in the harness or
connector.
5. CHECK A/T CHECK INDICATOR LAMP CIRCUIT
1. Turn ignition switch OFF.
2. Check the combination meter. Refer to DI-4, "
COMBINATION METERS" .
OK or NG
OK >> GO TO 6
NG >> Replace the combination meter. Refer to DI-26, "
Disassembly and Assembly for Combination
Meter" .
6. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 4 , "
SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate
“TCM-POWER SUPPLY”?
YES >> Check the TCM power circuit. Refer to AT- 1 2 9 , "DTC P1701 TRANSMISSION CONTROL MOD-
ULE (POWER SUPPLY)" .
NO >> GO TO 7.
7. DETECT MALFUNCTIONING ITEM
Check the following items:
The A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the control valve with TCM. Refer to AT- 2 4 2 , "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2" .
NG >> Repair or replace damaged parts.Continuity should exist.
SCIA2106E
DI-72
WARNING CHIME
Revision: 2004 November 2004 FX35/FX45
5. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M3 terminal
37 (B/W) and key switch harness connector M23 terminal 1 (B/
W).
3. Check continuity between BCM harness connector M3 terminal
37 (B/W) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Check voltage between key switch harness connector M23 terminal
2 (L/R) and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installa-
tion of BCM" .
NG >> Check harness for open or short between key switch
and fuse.
Key Warning Chime Does Not Operate (With Intelligent Key, When Mechanical
Key Is Used)
AKS0079U
1. CHECK FUSE
Check if the key switch and ignition knob switch 10A fuse (No. 38, located in the fuse and fusible link box) is
blown. Refer to DI-59, "
Wiring Diagram — CHIME —" .
Is the fuse blown?
YES >> Replace fuse. Be sure to repair the cause of malfunction before installing new fuse.
NO >> GO TO 2.
2. CHECK WARNING CHIME OPERATION
Check the chime under conditions in exception of key warning chime (when mechanical key is used) opera-
tion.
Does warning chime sound?
YES >> GO TO 3.
NO >> Go to DI-68, "
All Warnings Are Not Operated" or DI-69, "Key Warning Chime and Light Warning
Chime Does Not Operate (Seat Belt Warning Chime Does Operate)" . Continuity should exist.
Continuity should not exist.
SKIA5050E
Battery voltage should exist.
SKIA5051E
GI-18
HOW TO USE THIS MANUAL
Revision: 2004 November 2004 FX35/FX45
14 Wire color
This shows a code for the color of the wire.
B = Black
W = White
R = Red
G = Green
L = Blue
Y = Yellow
LG = Light GreenBR = Brown
OR or O = Orange
P = Pink
PU or V (Violet) = Purple
GY or GR = Gray
SB = Sky Blue
CH = Dark Brown
DG = Dark Green
When the wire color is striped, the base color is given first, followed by the stripe color as shown
below:
Example: L/W = Blue with White Stripe
15 Option description
This shows a description of the option abbreviation used on the page.
16 Switch
This shows that continuity exists between terminals 1 and 2 when the switch is in the A posi-
tion. Continuity exists between terminals 1 and 3 when the switch is in the B position.
17 Assembly parts
Connector terminal in component shows that it is a harness incorporated assembly.
18 Cell code
This identifies each page of the wiring diagram by section, system and wiring diagram page
number.
19 Current flow arrow
Arrow indicates electric current flow, especially where the direction of standard flow (vertically
downward or horizontally from left to right) is difficult to follow.
A double arrow “ ” shows that current can flow in either direction depending on cir-
cuit operation.
20 System branch
This shows that the system branches to another system identified by cell code (section and
system).
21 Page crossing
This arrow shows that the circuit continues to another page identified by cell code.
The C will match with the C on another page within the system other than the next or preced-
ing pages.
22 Shielded line
The line enclosed by broken line circle shows shield wire.
23Component box in
wave line
This shows that another part of the component is also shown on another page (indicated by
wave line) within the system.
24 Component name
This shows the name of a component.
25 Connector number
This shows the connector number.
The letter shows which harness the connector is located in.
Example: M : main harness. For detail and to locate the connector, refer to PG section "Main
Harness", “Harness Layout”. A coordinate grid is included for complex harnesses to aid in
locating connectors.
26 Ground (GND)
The line spliced and grounded under wire color shows that ground line is spliced at the
grounded connector.
27 Ground (GND)
This shows the ground connection. For detailed ground distribution information, refer to
"Ground Distribution" in PG section.
28 Connector views
This area shows the connector faces of the components in the wiring diagram on the page.
29 Common component
Connectors enclosed in broken line show that these connectors belong to the same compo-
nent.
30 Connector color
This shows a code for the color of the connector. For code meaning, refer to wire color codes,
Number 14 of this chart.
31Fusible link and fuse
box
This shows the arrangement of fusible link(s) and fuse(s), used for connector views of
"POWER SUPPLY ROUTING" in PG section.
The open square shows current flow in, and the shaded square shows current flow out.
32 Reference area
This shows that more information on the Super Multiple Junction (SMJ) and Joint Connectors
(J/C) exists on the PG section. Refer to "Reference Area" for details. Num-
berItem Description
IDX-4
ALPHABETICAL INDEX
Electric throttle control actuator ........ EC-415, EC-417,
EC-1077
, EC-1079
Electric throttle control actuator (VK45DE) ..... EM-174
Electric throttle control actuator (VQ35DE) ....... EM-19
Electrical load signal circuit .............. EC-614, EC-1292
Electrical unit ..................................................... PG-77
Electrical units location ...................................... PG-70
Electronic ignition (EI) system ............. EC-34, EC-681
Engine control module (ECM) .......... EC-401, EC-1057
Engine control system diagram and chart ........ EC-29,
EC-676
Engine coolant temperature sensor (ECTS) ... EC-185,
EC-197
, EC-842, EC-855
Engine coolant(VK45DE) .................................. CO-36
Engine coolant(VQ35DE) ................................. CO-11
Engine oil filter replacement ............................. MA-25
Engine oil filter replacement(VQ35DE) ............. MA-18
Engine oil precautions .......................................... GI-8
Engine oil replacement(VQ35DE) ..................... MA-17
Engine oil(VK45DE) ........................................... LU-25
Engine oil(VQ35DE) ............................................ LU-7
Engine removal(VK45DE) ............................... EM-236
Engine removal(VQ35DE) .............................. EM-110
Engine room cover(VK45DE) ......................... EM-168
ETC1 - Wiring diagram .................... EC-418, EC-1080
ETC2 - Wiring diagram .................... EC-425, EC-1087
ETC3 - Wiring diagram .................... EC-429, EC-1091
EVAP canister .................................. EC-646, EC-1323
EVAP canister purge volume control solenoid valve ....
EC-335
, EC-990, EC-1160
EVAP canister vent control valve ...... EC-342, EC-502,
EC-997
, EC-1168
EVAP control system (small leak) diagnosis .. EC-326,
EC-366
, EC-981, EC-1022
EVAP control system pressure sensor ........... EC-349,
EC-352
, EC-358, EC-1004, EC-1007, EC-1014
EVAP control system purge flow monitoring diagnosis
EC-321
, EC-976
EVAP vapor lines inspection ................. MA-20, MA-27
Evaporative emission (EVAP) system ............ EC-643,
EC-1320
Evaporator ..................................................... ATC-155
Exhaust manifold(VK45DE) ............................ EM-178
Exhaust manifold(VQ35DE) .............................. EM-26
Exhaust system ................................................... EX-3
Exhaust system inspection ..................... EX-3, MA-28
Expansion valve ............................................. ATC-156
F
F/FOG - Wiring diagram ..................................... LT-79
F/PUMP - Wiring diagram ................ EC-604, EC-1281
Final drive removal and installation .. FFD-10, RFD-11
Floor trim ............................................................. EI-40
Flow charts ......................................................... GI-27
Fluid temperature sensor (A/T) ........................ AT-139
Fluorescent leak detector .............................. ATC-157
Fog lamp, front .................................................... LT-77
Front axle ............................................. FAX-4, FAX-10
Front brake solenoid valve ................. AT-156, AT-158
Front bumper ...................................................... EI-14
Front door ............................. BL-148, BL-152, GW-76
Front fog lamp .................................................... LT-77
Front passenger air bag .................................. SRS-40
Front seat belt ...................................................... SB-4
Front seat belt pre-tensioner ..... SB-2, SRS-3, SRS-47
Front side air bag ............................................ SRS-41
Front suspension .............................................. FSU-6
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FTTS - Wiring diagram ...... EC-275, EC-280, EC-933,
EC-938
Fuel cut control (at no load high engine speed) EC-35,
EC-683
Fuel filter replacement ......................................... FL-4
Fuel gauge ............................................................ DI-4
Fuel injector and fuel tube(VK45DE) .............. EM-188
Fuel injector and fuel tube(VQ35DE) ................ EM-45
Fuel level sensor EC-384, EC-386, EC-388, EC-1040,
EC-1042
, EC-1044
Fuel line inspection .................................. FL-3, MA-24
Fuel line inspection(VQ35DE) .......................... MA-17
Fuel precautions .......................................... GI-6, GI-7
Fuel pressure check ........................... EC-51, EC-700
Fuel pressure release ......................... EC-51, EC-700
Fuel pump ....................................... EC-603, EC-1280
Fuel pump and gauge .......................................... FL-4
Fuel system ......................................................... FL-3
Fuel tank ............................................................ FL-10
Fuel tank temperature sensor .......... EC-273, EC-279,
EC-931
, EC-937
Fuel tank vacuum relief valve ......... EC-646, EC-1323
FUELB1 - Wiring diagram .. EC-258, EC-267, EC-916,
EC-925
FUELB2 - Wiring diagram .. EC-259, EC-268, EC-917,
EC-926
Fuse .................................................................. PG-17
Fuse and fusible link box .................................. PG-84
Fusible link ........................................................ PG-17
G
Gauges ................................................................. DI-4
Glass ...................................... GW-11, GW-76, GW-80
Glove box lamp ................................... LT-154, LT-197
GPS antenna ..................................................... AV-89
Grille - See Exterior ............................................ EI-23
Ground distribution ........................................... PG-31
H
H/AIM - Wiring diagram ..................................... LT-73
H/LAMP - Wiring diagram .................................. LT-11
Harness connector ............................................ PG-74
Harness layout .................................................. PG-46
Hazard warning lamp ......................................... LT-89
Headlamp aiming control ................................... LT-73
Headlamp leveler - See Headlamp aiming control ........