AT-92
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Diagnostic Procedure Without CONSULT-IIINCS0002F
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-125, "Generic Scan Tool (GST) Function" .
OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-62, "Malfunction Indicator Lamp (MIL)" .
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Description
When the ignition switch is turned ON, the indicator lamp lights up 2 seconds. As a method for locating the
suspect circuit, when the self-diagnostics start signal is input, the memory for the malfunction location is output
and A/T CHECK indicator lamp flashes to display the corresponding DTC.
Diagnostic Procedure
1. CHECK A/T CHECK INDICATOR LAMP
1. Start the engine with selector lever in “P” position. Warm engine to normal operating temperature.
2. Turn ignition switch ON and OFF at least twice, then leave it in the OFF position.
3. Wait 10 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does A/T CHECK indicator lamp come on for about 2 seconds?
YES >> GO TO 2.
NO >> Go to AT- 1 7 2 , "
A/T Check Indicator Lamp Does Not Come On" .
2. JUDGMENT PROCEDURE
1. Turn ignition switch OFF.
2. Keep pressing shift lock release button.
3. Move selector lever from “P” to “D” position.
4. Release accelerator pedal. (Set the closed throttle position signal ON.)
5. Depress brake pedal. (Stop lamp switch signal ON.)
6. Turn ignition switch ON. (Do not start engine.)
7. Wait 3 seconds.
8. Move the selector lever to the manual shift gate side. (Manual mode switch ON.)
9. Release brake pedal. (Stop lamp switch signal OFF.)
10. Move the selector lever to “D” position. (Manual mode switch OFF.)
11. Depress brake pedal. (Stop lamp switch signal ON.)
12. Release brake pedal. (Stop lamp switch signal OFF.)
13. Depress accelerator pedal fully and release it.
>> GO TO 3.
3. CHECK SELF-DIAGNOSIS CODE
Check A/T CHECK indicator lamp. Refer to AT- 9 3 , "
Judgment Self-diagnosis Code" .
If the system does not go into self-diagnostics. Refer to AT- 1 0 2 , "
DTC P0705 PARK/NEUTRAL POSITION
SWITCH" , AT- 1 5 7 , "DTC P1815 MANUAL MODE SWITCH" , AT- 1 6 6 , "CLOSED THROTTLE POSITION AND
WIDE OPEN THROTTLE POSITION CIRCUIT" , AT- 1 6 7 , "BRAKE SIGNAL CIRCUIT" .
>>DIAGNOSIS END
AT-94
DTC U1000 CAN COMMUNICATION LINE
Revision: 2006 November2007 350Z
DTC U1000 CAN COMMUNICATION LINEPFP:23710
DescriptionNCS0002G
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicNCS0002H
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-III or 17th judgment flicker without
CONSULT-III is detected when TCM cannot communicate to other control units.
Possible CauseNCS0002I
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureNCS0002J
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION”
with CONSULT-III.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to AT- 9 6 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
DTC P0615 START SIGNAL CIRCUIT
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Revision: 2006 November2007 350Z
DTC P0615 START SIGNAL CIRCUITPFP:25230
DescriptionNCS0002M
Prohibits cranking other at “P” or “N” position.
CONSULT-III Reference ValueNCS0002N
On Board Diagnosis LogicNCS0002O
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P0615 STARTER RELAY/CIRC” with CONSULT-III or 14th judgment flicker with-
out CONSULT-III is detected when starter relay is switched ON other than at “P” or “N” position. (Or when
switched OFF at “P” or “N” position.)
Possible CauseNCS0002P
Harness or connectors
(Starter relay and TCM circuit is open or shorted.)
Starter relay circuit
DTC Confirmation ProcedureNCS0002Q
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION”
with CONSULT-III.
3. Touch “START”.
4. Start engine.
5. Vehicle start for at least 2 consecutive seconds.
6. If DTC is detected, go to AT- 9 9 , "
Diagnostic Procedure" .
Item name Condition Display value
STARTER RELAYSelector lever in “N” and “P” positions. ON
Selector lever in other positions. OFF
DTC P0700 TCM
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Revision: 2006 November2007 350Z
DTC P0700 TCMPFP:31036
DescriptionNCS0002T
The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The
TCM controls A/T.
On Board Diagnosis LogicNCS0002U
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0700 TCM” with CONSULT-III is detected when TCM is malfunctioning.
Possible CauseNCS0002V
TCM.
DTC Confirmation ProcedureNCS0002W
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION”
with CONSULT-III.
3. Touch “START”.
4. Start engine.
5. Run engine for at least 2 consecutive seconds at idle speed.
6. If DTC is detected, go to AT- 1 0 1 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnostic ProcedureNCS0002X
1. CHECK DTC
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-III.
3. Touch “ERASE”.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Perform AT- 1 0 1 , "
DTC Confirmation Procedure" .
Is the
“TCM” displayed again?
YES >> Replace control valve with TCM. Refer to AT- 2 1 5 , "Control Valve with TCM and A/T Fluid Temper-
ature Sensor 2" .
NO >>INSPECTION END
AT-102
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: 2006 November2007 350Z
DTC P0705 PARK/NEUTRAL POSITION SWITCHPFP:32006
DescriptionNCS0002Y
PNP switch includes a transmission range switch.
The transmission range switch detects the selector lever position and sends a signal to the TCM.
CONSULT-III Reference ValueNCS0002Z
On Board Diagnosis LogicNCS00030
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-III or 9th judgment flicker without CON-
SULT-III is detected under the following conditions.
–When TCM does not receive the correct voltage signal from PNP switch 1, 2, 3 and 4 based on the gear
position.
–When no other position but “P” position is detected from “N” position.
Possible CauseNCS00031
Harness or connectors
PNP switch 1, 2, 3, 4 and TCM circuit is open or shorted.
PNP switch 1, 2, 3 and 4
DTC Confirmation ProcedureNCS00032
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION”
with CONSULT-III.
3. Touch “START”.
4. Start engine.
5. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.
ACCELE POSI: More than 1.0/8
6. If DTC is detected, go to AT- 1 0 4 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value
SLCT LVR POSISelector lever in “N” and “P” positions. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
AT-106
DTC P0717 TURBINE REVOLUTION SENSOR
Revision: 2006 November2007 350Z
DTC P0717 TURBINE REVOLUTION SENSORPFP:31935
DescriptionNCS0019V
The turbine revolution sensor detects input shaft rpm (revolutions per minute). It is located on the input side of
the A/T. Monitors revolution of sensor 1 and sensor 2 for non-standard conditions.
CONSULT-III Reference ValueNCS0019W
On Board Diagnosis LogicNCS0019X
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0717 TURBINE REV S/CIRC” with CONSULT-III or 11th judgment flicker with-
out CONSULT-III is detected under the following conditions.
–When TCM does not receive the proper voltage signal from the sensor.
–When TCM detects an irregularity only at position of 4th gear for turbine revolution sensor 2.
Possible CauseNCS0019Y
Harness or connectors
(Sensor circuit is open or shorted.)
Turbine revolution sensor 1 and/or 2
DTC Confirmation ProcedureNCS0019Z
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “VHCL/S SE-A/T”, “ACCELE POSI”, “ENGINE SPEED”, “SLCT LVR POSI” and
“GEAR”.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VHCL/S SE-A/T: 40 km/h (25 MPH) or more
ACCELE POSI: More than 0.5/8
ENGINE SPEED: 1,500 rpm or more
SLCT LVR POSI: “D” position
GEAR (Turbine revolution sensor 1): “4” or “5” position
GEAR (Turbine revolution sensor 2): All positions
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
5. If DTC is detected, go to AT- 1 0 7 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value
TURBINE REV During driving (lock-up ON) Approximately matches the engine speed.
AT-108
DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)
Revision: 2006 November2007 350Z
DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)PFP:32702
DescriptionNCS00035
The revolution sensor detects the revolution of the parking gear and emits a pulse signal. The pulse signal is
sent to the TCM which converts it into vehicle speed.
CONSULT-III Reference ValueNCS00036
On Board Diagnosis LogicNCS00037
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0720 VEH SPD SEN/CIR AT” with CONSULT-III or 1st judgment flicker without
CONSULT-III is detected under the following conditions.
–When TCM does not receive the proper voltage signal from the sensor.
–After ignition switch is turned ON, irregular signal input from vehicle speed sensor MTR before the vehicle
starts moving.
Possible CauseNCS00038
Harness or connectors
(Sensor circuit is open or shorted.)
Revolution sensor
Vehicle speed sensor MTR
DTC Confirmation ProcedureNCS00039
CAUTION:
Always drive vehicle at a safe speed.
Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Touch “START”.
4. Drive vehicle and check for an increase of “VHCL/S SE-A/T” value in response to “VHCL/S SE-MTR”
value.
If the check result is NG, go to AT- 111 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
5. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “VHCL/S SE-A/T”, “ACCELE POSI”, “ENGINE SPEED” and “SLCT LVR POSI”.
6. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VHCL/S SE-A/T: 30 km/h (19 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
If the check result is NG, go to AT- 111 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
7. Maintain the following conditions for at least 5 consecutive seconds.
ENGINE SPEED: 3,500 rpm or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer reading.
DTC P0725 ENGINE SPEED SIGNAL
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Revision: 2006 November2007 350Z
DTC P0725 ENGINE SPEED SIGNALPFP:24825
DescriptionNCS0003C
The engine speed signal is sent from the ECM to the TCM.
CONSULT-III Reference ValueNCS0003D
On Board Diagnosis LogicNCS0003E
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0725 ENGINE SPEED SIG” with CONSULT-III or 16th judgment flicker without
CONSULT-III is detected when TCM does not receive the ignition signal from ECM during engine cranking
or running.
Possible CauseNCS0003F
Harness or connectors
(ECM to TCM circuit is open or shorted.)
DTC Confirmation ProcedureNCS0003G
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “VHCL/S SE-A/T”, “ACCELE POSI” and “SLCT LVR POSI”.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 10 consecutive seconds.
VHCL/S SE-A/T: 10 km/h (6 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
5. If DTC is detected, go to AT- 11 4 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value
ENGINE SPEED Engine running Closely matches the tachometer reading.