lighting sys INFINITI QX56 2004 Factory Owner's Manual

COMBINATION METERS
DI-5
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Revision: August 20072004 QX56
COMBINATION METERSPFP:24814
System DescriptionEKS007DL
UNIFIED METER CONTROL UNIT

Speedometer, odometer, tachometer, fuel gauge, oil pressure gauge, voltage meter, A/T temperature
gauge, and water temperature gauge are controlled by the unified meter control unit, which is built into the
combination meter.

Warning indicators are controlled by signals drawn from the CAN communication system, BCM (body con-
trol module), and components connected directly to the combination meter.

Digital meter is adopted for odometer/trip meters*, as well as the A/T position indicator display.
*The record of the odometer is kept even if the battery cable is disconnected.

Odometer/trip meters and A/T indicator segments can be checked in diagnosis mode.

Meters/gauges can be checked in diagnosis mode.
Illumination control
The unified meter control unit outputs the speedometer, odometer/trip meters, tachometer, oil pressure gauge,
voltage meter, A/T indicator, A/T temperature gauge, fuel and temperature gauge lighting when the ignition
switch is turned on. When the lighting switch is turned on, the illumination control switch can be used to adjust
the brightness of the combination meter illumination and the odometer/trip meters and meter illumination.
When the ignition switch is turned from the OFF to the ON position, the combination meter dial lighting will
remain off for 0.7 seconds. For additional combination meter illumination control information, refer to LT-152,
"System Description" .

DI-44
WARNING CHIME
Revision: August 20072004 QX56
System DescriptionEKS007EF
FUNCTION
Power is supplied at all times

through 50A fusible link (letter f , located in the fuse and fusible link box)

to BCM terminal 70, and

through 10A fuse [No. 19, located in the fuse block (J/B)]

to key switch and key lock solenoid terminal 3.
With ignition switch in ON or START position, power is supplied

through 10A fuse [No. 59, located in the fuse and relay box)

to BCM terminal 38.
Ground is supplied

to BCM terminal 67

through body grounds M57, M61, and M79.
NOTE:
When ignition key warning chime, light warning chime, and seat belt warning chime are required at the same
time, the priorities for each chime are the following.
1. Light warning chime
2. Ignition key warning chime
3. Seat belt warning chime
IGNITION KEY WARNING CHIME
With the key inserted in the ignition switch, the ignition switch in OFF position, and the driver's door open, the
warning chime will sound.
Power is supplied

through key switch and key lock solenoid terminal 4

to BCM terminal 37.
Ground is supplied

to BCM terminal 47

through front door switch LH terminal 2.
Front door switch LH is case grounded.
BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter via CAN
communication lines. When the combination meter receives key warning signal, it sounds warning chime.
LIGHT WARNING CHIME
With the key removed from the ignition switch, the driver's door open, and the lighting switch (part of the com-
bination switch) in 1st or 2nd position, the warning chime will sound. [Except when headlamp battery saver
control operates (5 minutes after ignition switch is turned to OFF or ACC position) and headlamps do not illu-
minate.]
Signal is supplied

from combination switch (lighting switch) terminals 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10

to BCM terminals 2, 3, 4, 5, 6, 32, 33, 34, 35 and 36.
NOTE:
BCM detected lighting switch in 1st or 2nd position. Refer to BCS-3, "
COMBINATION SWITCH READING
FUNCTION" .
Ground is supplied

to BCM terminal 47

through front door switch LH terminal 2.
Front door switch LH is case grounded.
BCM detects headlamps are illuminated, and sends light warning signal to combination meter CAN communi-
cation lines. When the combination meter receives light warning signal, it sounds warning chime.
SEAT BELT WARNING CHIME
When the ignition switch is turned ON with the seat belt unfastened (seat belt buckle switch LH unfastened),
warning chime will sound for approximately 6 seconds.

INDEX FOR DTC
EC-9
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EC
Revision: August 20072004 QX56CMP SEN/CIRC-B1 P0340 0340 2×EC-261
CTP LEARNING P1225 1225 2 —EC-420
CTP LEARNING P1226 1226 2 —EC-422
CYL 1 MISFIRE P0301 0301 2×EC-243
CYL 2 MISFIRE P0302 0302 2×EC-243
CYL 3 MISFIRE P0303 0303 2×EC-243
CYL 4 MISFIRE P0304 0304 2×EC-243
CYL 5 MISFIRE P0305 0305 2×EC-243
CYL 6 MISFIRE P0306 0306 2×EC-243
CYL 7 MISFIRE P0307 0307 2×EC-243
CYL 8 MISFIRE P0308 0308 2×EC-243
D/C SOLENOID/CIRC P1762 1762 1×AT- 1 5 7
D/C SOLENOID FNCTN P1764 1764 1×AT- 1 6 0
ECM P0605 0605 1 or 2× or —EC-351
ECM BACK UP/CIRCUIT P1065 1065 2×EC-361
ECT SEN/CIRCUIT P0117 0117 1×EC-165
ECT SEN/CIRCUIT P0118 0118 1×EC-165
ECT SENSOR P0125 0125 1×EC-178
ENG OVER TEMP P1217 1217 1×EC-410
ETC ACTR P1121 1121 1×EC-365
ETC FUNCTION/CIRC P1122 1122 1×EC-367
E T C M O T P 11 2 8 11 2 8 1×EC-378
E T C M O T P W R P 11 2 4 11 2 4 1×EC-373
E T C M O T P W R P 11 2 6 11 2 6 1×EC-373
EVAP GROSS LEAK P0455 0455 2×EC-316
EVAP PURG FLOW/MON P0441 0441 2×EC-271
EVAP SMALL LEAK P0442 0442 2×EC-276
EVAP SYS PRES SEN P0451 0451 2×EC-299
EVAP SYS PRES SEN P0452 0452 2×EC-302
EVAP SYS PRES SEN P0453 0453 2×EC-308
EVAP VERY SML LEAK P0456 0456 2×EC-324
FR/B SOLENOID FNCT P1759 1759 1×AT- 1 5 4
FR/B SOLENOID/CIRC P1757 1757 1×AT- 1 5 1
FTT SEN/CIRCUIT P0182 0182 2×EC-231
FTT SEN/CIRCUIT P0183 0183 2×EC-231
FTT SENSOR P0181 0181 2×EC-225
FUEL LEV SEN SLOSH P0460 0460 2×EC-334
FUEL LEVEL SENSOR P0461 0461 2×EC-336
FUEL LEVL SEN/CIRC P0462 0462 2×EC-338
FUEL LEVL SEN/CIRC P0463 0463 2×EC-338
FUEL SYS-LEAN-B1 P0171 0171 2×EC-208
FUEL SYS-LEAN-B2 P0174 0174 2×EC-208
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-10Revision: August 2007
INDEX FOR DTC
2004 QX56
FUEL SYS-RICH-B1 P0172 0172 2×EC-217
FUEL SYS-RICH-B2 P0175 0175 2×EC-217
HLR/C SOL FNCTN P1769 1769 1×AT-166
HLR/C SOL/CIRC P1767 1767 1×AT-163
HO2S2 (B1) P0138 0138 2×EC-186
HO2S2 (B1) P0139 0139 2×EC-196
HO2S2 (B1) P1146 1146 2×EC-383
HO2S2 (B1) P1147 1147 2×EC-395
HO2S2 (B2) P0158 0158 2×EC-186
HO2S2 (B2) P0159 0159 2×EC-196
HO2S2 (B2) P1166 1166 2×EC-383
HO2S2 (B2) P1167 1167 2×EC-395
HO2S2 HTR (B1) P0037 0037 2×EC-138
HO2S2 HTR (B1) P0038 0038 2×EC-138
HO2S2 HTR (B2) P0057 0057 2×EC-138
HO2S2 HTR (B2) P0058 0058 2×EC-138
I/C SOLENOID/CIRC P1752 1752 1×AT-145
I/C SOLENOID FNCTN P1754 1754 1×AT-148
IAT SEN/CIRCUIT P0112 0112 2×EC-161
IAT SEN/CIRCUIT P0113 0113 2×EC-161
IAT SENSOR P0127 0127 2×EC-181
ISC SYSTEM P0506 0506 2×EC-342
ISC SYSTEM P0507 0507 2×EC-344
KNOCK SEN/CIRC-B1 P0327 0327 2 —EC-250
KNOCK SEN/CIRC-B1 P0328 0328 2 —EC-250
KNOCK SEN/CIRC-B2 P0332 0332 2 —EC-250
KNOCK SEN/CIRC-B2 P0333 0333 2 —EC-250
L/PRESS SOL/CIRC P0745 0745 2×AT-124
LC/B SOLENOID FNCT P1774 1774 1×AT-172
LC/B SOLENOID/CIRC P1772 1772 1×AT-169
MAF SEN/CIRCUIT P0101 0101 1×EC-146
MAF SEN/CIRCUIT P0102 0102 1×EC-154
MAF SEN/CIRCUIT P0103 0103 1×EC-154
MULTI CYL MISFIRE P0300 0300 2×EC-243
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 —BL-138
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000———
P-N POS SW/CIRCUIT P1706 1706 2×EC-546
PNP SW/CIRC P0705 0705 2×AT-109
PURG VOLUME CONT/V P0444 0444 2×EC-285
PURG VOLUME CONT/V P0445 0445 2×EC-285
PURG VOLUME CONT/V P1444 1444 2×EC-496
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
EC-11
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EC
Revision: August 20072004 QX56
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results). This number is controlled by NISSAN.
*4: The troubleshooting for this DTC needs CONSULT-II.
*5: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*6: 2WD models
*7: Models with ICC systemPW ST P SEN/CIRC P0550 0550 2 —EC-346
SENSOR POWER/CIRC P1229 1229 1×EC-424
TCC SOLENOID/CIRC P0740 0740 2×AT - 11 8
TCM P0700 0700 1×AT- 1 0 8
TCS C/U FUNCTN P1211 1211 2 —EC-408
TCS/CIRC P1212 1212 2 —EC-409
THERMSTAT FNCTN P0128 0128 2×EC-184
TP SEN 1/CIRC P0222 0222 1×EC-236
TP SEN 1/CIRC P0223 0223 1×EC-236
TP SEN 2/CIRC P0122 0122 1×EC-171
TP SEN 2/CIRC P0123 0123 1×EC-171
TP SENSOR P2135 2135 1×EC-569
TURBINE REV S/CIRC P1716 1716 2×AT- 1 3 4
TW CATALYST SYS-B1 P0420 0420 2×EC-267
TW CATALYST SYS-B2 P0430 0430 2×EC-267
VEH SPD SEN/CIR AT*5P0720 0720 2×AT - 11 2
VEH SPEED SEN/CIRC*5P0500 0500 2×EC-340
VENT CONTROL VALVE P0447 0447 2×EC-292
VENT CONTROL VALVE P1446 1446 2×EC-504
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-12Revision: August 2007
INDEX FOR DTC
2004 QX56
DTC No. IndexUBS00GZ4
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-135, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
×:Applicable —: Not applicable
DTC*
1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3
U1000
1000*4CAN COMM CIRCUIT 1×EC-135
U1001
1001*4CAN COMM CIRCUIT 2 —EC-135
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.———
P0037 0037 HO2S2 HTR (B1) 2×EC-138
P0038 0038 HO2S2 HTR (B1) 2×EC-138
P0057 0057 HO2S2 HTR (B2) 2×EC-138
P0058 0058 HO2S2 HTR (B2) 2×EC-138
P0101 0101 MAF SEN/CIRCUIT 1×EC-146
P0102 0102 MAF SEN/CIRCUIT 1×EC-154
P0103 0103 MAF SEN/CIRCUIT 1×EC-154
P 0 11 2 0 11 2 I AT S E N /C I R C U I T 2×EC-161
P 0 11 3 0 11 3 I AT S E N /C I R C U I T 2×EC-161
P0117 0117 ECT SEN/CIRCUIT 1×EC-165
P0118 0118 ECT SEN/CIRCUIT 1×EC-165
P0122 0122 TP SEN 2/CIRC 1×EC-171
P0123 0123 TP SEN 2/CIRC 1×EC-171
P0125 0125 ECT SENSOR 1×EC-178
P0127 0127 IAT SENSOR 2×EC-181
P0128 0128 THERMSTAT FNCTN 2×EC-184
P0138 0138 HO2S2 (B1) 2×EC-186
P0139 0139 HO2S2 (B1) 2×EC-196
P0158 0158 HO2S2 (B2) 2×EC-186
P0159 0159 HO2S2 (B2) 2×EC-196
P0171 0171 FUEL SYS-LEAN-B1 2×EC-208
P0172 0172 FUEL SYS-RICH-B1 2×EC-217
P0174 0174 FUEL SYS-LEAN-B2 2×EC-208
P0175 0175 FUEL SYS-RICH-B2 2×EC-217
P0181 0181 FTT SENSOR 2×EC-225
P0182 0182 FTT SEN/CIRCUIT 2×EC-231
P0183 0183 FTT SEN/CIRCUIT 2×EC-231
P0222 0222 TP SEN 1/CIRC 1×EC-236
P0223 0223 TP SEN 1/CIRC 1×EC-236
P0300 0300 MULTI CYL MISFIRE 2×EC-243
P0301 0301 CYL 1 MISFIRE 2×EC-243
P0302 0302 CYL 2 MISFIRE 2×EC-243
P0303 0303 CYL 3 MISFIRE 2×EC-243

INDEX FOR DTC
EC-13
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EC
Revision: August 20072004 QX56P0304 0304 CYL 4 MISFIRE 2×EC-243
P0305 0305 CYL 5 MISFIRE 2×EC-243
P0306 0306 CYL 6 MISFIRE 2×EC-243
P0307 0307 CYL 7 MISFIRE 2×EC-243
P0308 0308 CYL 8 MISFIRE 2×EC-243
P0327 0327 KNOCK SEN/CIRC-B1 2 —EC-250
P0328 0328 KNOCK SEN/CIRC-B1 2 —EC-250
P0332 0332 KNOCK SEN/CIRC-B2 2 —EC-250
P0333 0333 KNOCK SEN/CIRC-B2 2 —EC-250
P0335 0335 CKP SEN/CIRCUIT 2×EC-255
P0340 0340 CMP SEN/CIRC-B1 2×EC-261
P0420 0420 TW CATALYST SYS-B1 2×EC-267
P0430 0430 TW CATALYST SYS-B2 2×EC-267
P0441 0441 EVAP PURG FLOW/MON 2×EC-271
P0442 0442 EVAP SMALL LEAK 2×EC-276
P0444 0444 PURG VOLUME CONT/V 2×EC-285
P0445 0445 PURG VOLUME CONT/V 2×EC-285
P0447 0447 VENT CONTROL VALVE 2×EC-292
P0451 0451 EVAP SYS PRES SEN 2×EC-299
P0452 0452 EVAP SYS PRES SEN 2×EC-302
P0453 0453 EVAP SYS PRES SEN 2×EC-308
P0455 0455 EVAP GROSS LEAK 2×EC-316
P0456 0456 EVAP VERY SML LEAK 2×EC-324
P0460 0460 FUEL LEV SEN SLOSH 2×EC-334
P0461 0461 FUEL LEVEL SENSOR 2×EC-336
P0462 0462 FUEL LEVL SEN/CIRC 2×EC-338
P0463 0463 FUEL LEVL SEN/CIRC 2×EC-338
P0500 0500
VEH SPEED SEN/CIRC*52×EC-340
P0506 0506 ISC SYSTEM 2×EC-342
P0507 0507 ISC SYSTEM 2×EC-344
P0550 0550 PW ST P SEN/CIRC 2 —EC-346
P0605 0605 ECM 1 or 2× or —EC-351
P0700 0700 TCM 1×AT- 1 0 8
P0705 0705 PNP SW/CIRC 2×AT- 1 0 9
P0710 0710 ATF TEMP SEN/CIRC 2×AT- 1 3 1
P0720 0720
VEH SPD SEN/CIR AT*52×AT - 11 2
P0740 0740 TCC SOLENOID/CIRC 2×AT - 11 8
P0744 0744 A/T TCC S/V FNCTN 2×AT- 1 2 1
P0745 0745 L/PRESS SOL/CIRC 2×AT- 1 2 4
P1031 1031 A/F SEN1 HTR (B1) 2×EC-354
P1032 1032 A/F SEN1 HTR (B1) 2×EC-354
P1051 1051 A/F SEN1 HTR (B2) 2×EC-354
DTC*1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
EC-15
C
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J
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MA
EC
Revision: August 20072004 QX56
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results). This number is controlled by NISSAN.
*4: The troubleshooting for this DTC needs CONSULT-II.
*5: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*6: 2WD models
*7: Models with ICC systemP1730 1730 A/T INTERLOCK 1×AT- 1 3 9
P1752 1752 I/C SOLENOID/CIRC 1×AT- 1 4 5
P1754 1754 I/C SOLENOID FNCTN 1×AT- 1 4 8
P1757 1757 FR/B SOLENOID/CIRC 1×AT- 1 5 1
P1759 1759 FR/B SOLENOID FNCT 1×AT- 1 5 4
P1762 1762 D/C SOLENOID/CIRC 1×AT- 1 5 7
P1764 1764 D/C SOLENOID FNCTN 1×AT- 1 6 0
P1767 1767 HLR/C SOL/CIRC 1×AT- 1 6 3
P1769 1769 HLR/C SOL FNCTN 1×AT- 1 6 6
P1772 1772 LC/B SOLENOID/CIRC 1×AT- 1 6 9
P1774 1774 LC/B SOLENOID FNCT 1×AT- 1 7 2
P1805 1805 BRAKE SW/CIRCUIT 2 —EC-551
P2122 2122 APP SEN 1/CIRC 1×EC-556
P2123 2123 APP SEN 1/CIRC 1×EC-556
P2127 2127 APP SEN 2/CIRC 1×EC-562
P2128 2128 APP SEN 2/CIRC 1×EC-562
P2135 2135 TP SENSOR 1×EC-569
P2138 2138 APP SENSOR 1×EC-576
DTC*1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-49
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EC
Revision: August 20072004 QX56
ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionUBS00GZQ
The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
The above information can be checked using procedures listed in the table below.
×: Applicable —: Not applicable
*: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to EC-77,
"Fail-safe Chart" .)
Two Trip Detection LogicUBS00GZR
When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lights up. The MIL lights up at the same time when the DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic items will cause the ECM to light up or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
×: Applicable —: Not applicable
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by lighting MIL up when there is
malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by means
of operating fail-safe function.
Emission-related diagnostic information SAE Mode
Diagnostic Trouble Code (DTC) Mode 3 of SAE J1979
Freeze Frame data Mode 2 of SAE J1979
System Readiness Test (SRT) code Mode 1 of SAE J1979
1st Trip Diagnostic Trouble Code (1st Trip DTC) Mode 7 of SAE J1979
1st Trip Freeze Frame data
Test values and Test limits Mode 6 of SAE J1979
Calibration ID Mode 9 of SAE J1979
DTC 1st trip DTCFreeze Frame
data1st trip Freeze
Frame dataSRT code Test value
CONSULT-II×× × × ×—
GST×× ×—××
ECM××*— ———
ItemsMIL DTC 1st trip DTC
1st trip 2nd trip
1st trip
displaying2nd trip
displaying1st trip
displaying2nd trip
display-
ing BlinkingLighting
upBlinkingLighting
up
Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0308 is
being detected×———— —×—
Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0308 is
being detected——×——×——
One trip detection diagnoses (Refer
to EC-8, "
INDEX FOR DTC" .)—×——×———
Except above — — —×—××—

EC-54Revision: August 2007
ON BOARD DIAGNOSTIC (OBD) SYSTEM
2004 QX56
1st trip DTC is specified in Mode 7 of SAE J1979. 1st trip DTC detection occurs without lighting up the MIL and
therefore does not warn the driver of a malfunction. However, 1st trip DTC detection will not prevent the vehi-
cle from being tested, for example during Inspection/Maintenance (I/M) tests.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in Work Flow procedure Step II, refer to EC-72, "
WORK FLOW" . Then perform DTC Confir-
mation Procedure or Overall Function Check to try to duplicate the malfunction. If the malfunction is dupli-
cated, the item requires repair.
How to Read DTC and 1st Trip DTC
DTC and 1st trip DTC can be read by the following methods.
With CONSULT-II
With GST
CONSULT-II or GST (Generic Scan Tool) Examples: P0340, P1148, P1706, etc.
These DTCs are prescribed by SAE J2012.
(CONSULT-II also displays the malfunctioning component or system.)
No Tools
The number of blinks of the MIL in the Diagnostic Test Mode II (Self-Diagnostic Results) indicates the DTC.
Example: 0340, 1148, 1706, etc.
These DTCs are controlled by NISSAN.

1st trip DTC No. is the same as DTC No.

Output of a DTC indicates a malfunction. However, GST or the Diagnostic Test Mode II do not indi-
cate whether the malfunction is still occurring or has occurred in the past and has returned to nor-
mal. CONSULT-II can identify malfunction status as shown below. Therefore, using CONSULT-II (if
available) is recommended.
A sample of CONSULT-II display for DTC and 1st trip DTC is shown below. DTC or 1st trip DTC of a malfunc-
tion is displayed in “SELF-DIAGNOSTIC RESULTS” mode of CONSULT-II. Time data indicates how many
times the vehicle was driven after the last detection of a DTC.
If the DTC is being detected currently, the time data will be [0].
If a 1st trip DTC is stored in the ECM, the time data will be [1t].
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA
The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant tem-
perature, short term fuel trim, long term fuel trim, engine speed, vehicle speed, base fuel schedule and intake
air temperature at the moment a malfunction is detected.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or
GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
details, see EC-107, "
Freeze Frame Data and 1st Trip Freeze Frame Data" .
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
PBIB09 11 E