Nissan Altima 2007-2012 Service Manual: P0615 start signal
Description
• TCM controls starter relay in IPDM E/R.
• TCM switches starter relay ON at “P” or “N” position and allows to crank engine.
• Then it prohibits cranking other than at “P” or “N” position.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION: Always drive vehicle at a safe speed.
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. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.
Is “P0615 STARTER RELAY/CIRC” detected? YES >> Go to TM-124, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
Diagnosis Procedure
1.CHECK STARTER RELAY SIGNAL
1. Turn ignition switch OFF.
2. Disconnect TCM harness connector and IPDM E/R harness connector F10.
3. Turn ignition switch ON.
4. Check voltage between IPDM E/R harness connector F10 terminal 72 and ground.
Is the inspection result normal? YES >> Check starter relay and starter control relay. Refer to PCS-14, "Diagnosis Description".
NO >> GO TO 2.
2.CHECK HARNESS BETWEEN TCM AND IPDM E/R (PART 1)
1. Turn ignition switch OFF.
2. Check continuity between TCM harness connector F16 (A) terminal 20 and IPDM E/R harness connector F10 (B) terminal 72.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK HARNESS BETWEEN TCM AND IPDM E/R 2 (PART 2)
Check continuity between TCM harness connector F16 terminal 20 and ground.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace damaged parts.
4.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-254, "Exploded View".
NO >> Repair or replace damaged parts.
U1000 CAn comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellen ...
P0703 stop lamp switch
Description
BCM detects ON/OFF state of the stop lamp switch and transmits the data to
the TCM via CAN communication
by converting the data to a signal.
DTC Logic
DTC DETECTION LOGIC
DTC CON ...
Other materials:
B2109 steering lock relay
Description
The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN
communication.
IPDM E/R turns the steering lock relay ON and transmits the release of the
steering to BCM.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2109 is displayed with DTC U1000, first perf ...
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 sends the
signal to TCM with CAN
communication.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMAT ...
P1805 brake switch
Description
Brake switch signal is applied to the ECM through the stop lamp switch when
the brake pedal is depressed.
This signal is used mainly to decrease the engine speed when the vehicle is
driving.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATI ...