Nissan Altima 2007-2012 Service Manual: P1722 estm vehicle speed signal
Description
The vehicle speed signal is transmitted from ABS actuator and electric unit (control unit) to TCM by CAN communication line.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION: Always drive vehicle at a safe speed. NOTE: If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.CHECK DTC DETECTION
1. Turn ignition switch ON.
2. Select “DATA MONITOR”.
3. Start engine and maintain the following conditions for at least 5 consecutive seconds.
Is “P1722 ESTM VEH SPD SIG” detected? YES >> Go to TM-353, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
Diagnosis Procedure
1.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform “SELF-DIAG RESULTS” mode for “ABS”.
Is the inspection result normal? YES >> GO TO 2.
NO >> Check DTC detected item. Refer to BRC-121, "DTC No. Index" (TCS/ABS), BRC-223, "DTC No.
Index" (VDC/TCS/ABS).
2.CHECK DTC WITH TCM
Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.
Is “P1722 ESTM VEH SPD SIG” detected? YES >> Replace TCM. Refer to TM-430, "Exploded View".
NO >> GO TO 3.
3.DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal? YES >> Replace TCM. Refer to TM-430, "Exploded View".
NO >> Repair or replace damaged parts.
P1705 throttle position sensor
Description
Electric throttle control actuator consists of throttle control motor,
accelerator pedal position sensor, throttle
position sensor etc. The actuator sends a signal to the ECM, and ECM ...
P1723 cvt speed sensor function
Description
The vehicle speed sensor CVT [output speed sensor (secondary speed sensor)]
detects the revolution of
parking gear and generates a pulse signal. The pulse signal is sent to the TCM,
...
Other materials:
Power supply and ground circuit
Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuse or fusible link are blown.
Is the fuse or fusible link blown?
YES >> Replace the blown fuse or fusible link after repairing the affected
circuit.
NO >> GO TO 2
2. CHECK POWER SUPPLY CIRCUIT
1. ...
Precaution
Supplemental Restraint System (SRS) AIR BA
G and SEAT BELT PRE-TENSIONER
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front passenger for certain
...
Oil filter
Removal and Installation
REMOVAL
1. Remove the engine undercover.
2. Remove the oil filter using Tool (A) as shown.
WARNING:
• Be careful not to get burned, the engine and engine oil
may be hot.
CAUTION:
• When removing, prepare a shop cloth to absorb any oil
leakage or spillag ...