Air NISSAN TIIDA 2007 Service Owner's Guide

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
AT-107
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DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)PFP:32702
DescriptionUCS005N U
The revolution sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal.
The pulse signal is sent to the TCM which converts it into vehicle speed.
CONSULT-II Reference ValueUCS005NV
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS005NW

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0720 VHCL SPEED SEN-AT” with CONSULT-II or 1st judgement flicker without
CONSULT-II is detected when TCM does not receive the proper voltage signal from the sensor.
Possible CauseUCS005NX

Harness or connector
(The sensor circuit is open or shorted.)

Revolution sensor
DTC Confirmation ProcedureUCS005NY
CAUTION:

Always drive vehicle at a safe speed.

Be careful not to rev engine into the red zone on the tachometer.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Touch “START”.
3. Drive vehicle and check for an increase of “VHCL/S SE-MTR”
value.
If the check result is NG, go to AT- 11 0 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
4. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
5. Touch “START”.
6. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VEHICLE SPEED: 30 km/h (19 MPH) or more
THROTTLE 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- 11 0 , "
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
THROTTLE 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.
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer reading.
BCIA0031E

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
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3. CHECK POWER AND SENSOR GROUND
1. Turn ignition switch OFF.
2. Disconnect the revolution sensor harness connector.
3. Turn ignition switch ON. (Do not start engine.)
4. Check voltage between revolution sensor harness connector
terminals.
5. Check voltage between revolution sensor harness connector
terminal and ground.
6. If OK, check harness for short to ground and short to power.
7. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG - 1 >> Battery voltage is not supplied between terminals 1 and
3, terminals 1 and ground: GO TO 6.
NG - 2 >> Battery voltage is not supplied between terminals 1 and 3 only: GO TO 7.
4. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminal and revolu-
tion sensor harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-78, "
TCM Terminals and Reference Value" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
Item Connector TerminalJudgement standard
(Approx.)
Revolution sensor F38 1 - 3 Battery voltage
SCIA2614E
Item Connector Terminal Judgement standard
(Approx.)
Revolution sensor F38 1 - ground Battery voltage
SCIA2615E
Item Connector Terminal Continuity
TCM E32 29
Ye s
Revolution sensor F38 2
SCIA2616E

AT-112
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
Revision: June 20062007 Versa
6. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (POWER)
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminals and revolu-
tion sensor harness connector terminal. Refer to AT-52, "
Circuit
Diagram" and AT-183, "Wiring Diagram — AT — MAIN" .
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> 10A fuse (No.49, located in the IPDM E/R) or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminal and revolu-
tion sensor harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
8. CHECK DTC
Perform AT-107, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
Item Connector Terminal Continuity
TCM E31 10
Ye s
Revolution sensor F38 1
TCM E31 19
Ye s
Revolution sensor F38 1
SCIA2617E
Item Connector Terminal Continuity
TCM E32 42
Ye s
Revolution sensor F38 3
SCIA2618E

DTC P0725 ENGINE SPEED SIGNAL
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DTC P0725 ENGINE SPEED SIGNALPFP:24825
DescriptionUCS005O1
The engine speed signal is sent from the ECM to the TCM.
CONSULT-II Reference ValueUCS005O2
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS005O3

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0725 ENGINE SPEED SIG” with CONSULT-II or 9th judgement flicker without
CONSULT-II is detected when TCM does not receive the proper voltage signal from ECM.
Possible CauseUCS005O4
Harness or connector
(Circuit is open or shorted.)
DTC Confirmation ProcedureUCS005O5
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Touch “START”.
3. Start engine and maintain the following conditions for at least 10
consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
4. If the check result is NG, go to AT- 11 5 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 10 seconds.
Selector lever position: “D” position
Vehicle speed: Higher than 10 km/h (6 MPH)
Throttle position: Greater than 1.0/8 of the full throttle position
3. Perform self-diagnosis. Refer to AT- 9 0 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 11 5 , "
Diagnostic Procedure" .
Item name Condition Display value
ENGINE SPEED Engine running Approximately matches the tachometer reading.
BCIA0031E

AT-116
DTC P0725 ENGINE SPEED SIGNAL
Revision: June 20062007 Versa
3. CHECK HARNESS BETWEEN TCM AND ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector and TCM connector.
3. Check continuity between ECM connector and TCM connector.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between body ground and transaxle
assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK DTC
Perform AT-113, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
5. CHECK TCM
1. Check TCM input/output signal. Refer to AT - 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Item Connector Terminal Continuity
TCM E32 39
Ye s
ECM F10 13
SCIA7173E

AT-118
DTC P0731 A/T 1ST GEAR FUNCTION
Revision: June 20062007 Versa
DTC Confirmation ProcedureUCS005OB
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with
CONSULT-II.
2. Touch “START”.
3. Make sure that output voltage of A/T fluid temperature sensor is
within the range below.
FLUID TEMP SE: 0.4 - 1.5 V
If out of range, drive the vehicle to decrease the voltage (warm
up the fluid) or stop engine to increase the voltage (cool down
the fluid).
4. Select “1ST GR FNCTN P0731” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
5. Accelerate vehicle to 20 to 25 km/h (12 to 16 MPH) under the following conditions and release the accel-
erator pedal completely.
THROTTLE POSI: Less than 1.0/8 (at all times during step 4)
SLCT LVR POSI: “D” position
–Make sure that “GEAR” shows “2” after releasing pedal.
6. Depress accelerator pedal to WOT (more than 7.0/8 of “THROTTLE POSI”) quickly from a speed of 20 to
25 km/h (12 to 16 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETED”. (It will take
approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to AT - 11 9 , "
Diagnostic Procedure" .
If “STOP VEHICLE” appears on CONSULT-II screen, go to the following step.
–Make sure that “GEAR” shows “1” when depressing accelerator pedal to WOT.
–If “TESTING” does not appear on CONSULT-II for a long time, select “SELF-DIAG RESULTS” for
“A/T”. In case a DTC other than “P0731 A/T 1ST GR FNCTN” is shown, refer to AT-82, "
Display
Items List" .
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-119, "
Diagnostic Procedure" .
Refer to AT-67, "
Vehicle Speed at Which Gear Shifting Occurs" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists. 1 → 2 → 3 → 4
Malfunction for “A/T 1ST GR FNCTN ” exists.2 → 2 → 3 → 3
4 → 3 → 3 → 4
BCIA0031E

DTC P0731 A/T 1ST GEAR FUNCTION
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Diagnostic ProcedureUCS005O C
1. CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Shift solenoid valve A
–Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con-
nector terminals and ground. Refer to AT - 1 5 2 , "
Wiring Diagram
— AT — SSV/A" and AT-157, "Wiring Diagram — AT — SSV/B"
.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2. CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Shift solenoid valve A
–Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminals and ground. Refer to
AT-152, "
Wiring Diagram — AT — SSV/A" and AT - 1 5 7 , "Wiring
Diagram — AT — SSV/B" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve A
F302 - Ground 20 - 30 Ω
Shift solenoid valve B 1 - Ground 5 - 20 Ω
SCIA3594E
SCIA3595E

AT-120
DTC P0731 A/T 1ST GEAR FUNCTION
Revision: June 20062007 Versa
3. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-293, "
Control Valve Assembly" .
2. Check to ensure that:
–Valve, sleeve and plug slide along valve bore under their own weight.
–Valve, sleeve and plug are free from burrs, dents and scratches.
–Control valve springs are free from damage, deformation and fatigue.
–Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 4.
NG >> Repair control valve assembly.
4. CHECK DTC
Perform AT-118, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Check control valve again. If NG, repair or replace control valve assembly.

AT-122
DTC P0732 A/T 2ND GEAR FUNCTION
Revision: June 20062007 Versa
DTC Confirmation ProcedureUCS005OG
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with
CONSULT-II.
2. Touch “START”.
3. Make sure that output voltage of A/T fluid temperature sensor is
within the range below.
FLUID TEMP SE: 0.4 - 1.5 V
If out of range, drive the vehicle to decrease the voltage (warm
up the fluid) or stop engine to increase the voltage (cool down
the fluid).
4. Select “2ND GR FNCTN P0732” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
5. Accelerate vehicle to 45 to 50 km/h (28 to 31 MPH) under the following conditions and release the accel-
erator pedal completely.
THROTTLE POSI: Less than 1.0/8
SLCT LVR POSI: “D” position
–Make sure that “GEAR” shows “3” or “4” after releasing pedal.
6. Depress accelerator pedal to WOT (more than 7.0/8 of “THROTTLE POSI”) quickly from a speed of 45 to
50 km/h (28 to 31 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETE”. (It will take
approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to AT - 1 2 3 , "
Diagnostic Procedure" .
If “STOP VEHICLE” appears on CONSULT-II screen, go to following step.
–Make sure that “GEAR” shows “2” when depressing accelerator pedal to WOT.
–If “TESTING” does not appear on CONSULT-II for a long time, select “SELF-DIAG RESULTS” for
“A/T”. In case a DTC other than “P0732 A/T 2ND GR FNCTN” is shown, refer to AT- 8 2 , "
Display
Items List" .
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-123, "
Diagnostic Procedure" .
Refer to AT-67, "
Vehicle Speed at Which Gear Shifting Occurs" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
BCIA0031E
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists 1 → 2 → 3 → 4
Malfunction for “A/T 2ND GR FNCTN” exists. 4 → 3 → 3 → 4

DTC P0732 A/T 2ND GEAR FUNCTION
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Diagnostic ProcedureUCS005O H
1. CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con-
nector terminal and ground. Refer to AT-157, "
Wiring Diagram
— AT — SSV/B" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
2. CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground. Refer to AT-
157, "Wiring Diagram — AT — SSV/B" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
3. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-293, "
Control Valve Assembly" .
2. Check to ensure that:
–Valve, sleeve and plug slide along valve bore under their own weight.
–Valve, sleeve and plug are free from burrs, dents and scratches.
–Control valve springs are free from damage, deformation and fatigue.
–Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 4.
NG >> Repair control valve assembly.
4. CHECK DTC
Perform AT-122, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Check control valve again. If NG, repair or replace control valve assembly.
Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve B F30 1 - Ground 5 - 20 Ω
SCIA3454E
SCIA2058E