2001 NISSAN ALMERA N16 check engine

20. Vehicle Does Not Decelerate By Engine
Brake
=NJAT0350SYMPTOM:
Vehicle does not decelerate by engine brake when shifting
from 2
2(12)to11.
1 CHECK SYMPTOM
Is 6. Vehicle Does Not Creep Backward In ªRº Position OK?
YesorNo
Ye s©Go to 15. Engine Speed Does Not Return To Idle (Light Braking D
4®D3), AT-320.
No©Go to 6. Vehicle Does Not Creep Backward In ªRº Position, AT-297.
SAT088JA
SAT360H
SAT004K
21. TCM Self-diagnosis Does Not Activate (PNP,
Overdrive Control and Throttle Position
Switches Circuit Checks)
NJAT0351SYMPTOM:
O/D OFF indicator lamp does not come on in TCM self-diag-
nostic procedure even if the lamp circuit is good.
DESCRIPTIONNJAT0351S01+PNP switch
The PNP switch assembly includes a transmission range
switch. The transmission range switch detects the selector
lever position and sends a signal to the TCM.
+Overdrive control switch
Detects the overdrive control switch position (ON or OFF) and
sends a signal to the TCM.
+Throttle position switch
Consists of a wide open throttle position switch and a closed
throttle position switch.
The wide open throttle position switch sends a signal to the
TCM when the throttle valve is open at least 1/2 of the full
throttle position. The closed throttle position switch sends a
signal to the TCM when the throttle valve is fully closed.
TROUBLE DIAGNOSES FOR SYMPTOMS
20. Vehicle Does Not Decelerate By Engine Brake
AT-326

DIAGNOSTIC PROCEDURENJAT0351S02
1 CHECK PNP SWITCH CIRCUIT (With CONSULT-II)
With CONSULT-II
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
3. Read out ªP/Nº, ªRº, ªDº, ª2º and ª1º position switches moving selector lever to each position.
Check that the signal of the selector lever position is indicated properly.
SAT701J
OK or NG
OK©GO TO 3.
NG©Check the following items:
+PNP switch (Refer to ªComponent Inspectionº, AT-333.)
+Harness for short or open between ignition switch and PNP switch (Main harness)
+Harness for short or open between PNP switch and TCM (Main harness)
+Diode (P, N positions)
TROUBLE DIAGNOSES FOR SYMPTOMS
21. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control and Throttle Position Switches Circuit Checks) (Cont'd)
AT-327

2 CHECK PNP SWITCH CIRCUIT (Without CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to ªONº position. (Do not start engine.)
2. Check voltage between TCM terminals 26, 27, 34, 35, 36 and ground while moving selector lever through each posi-
tion.
Voltage:
B: Battery voltage
0: 0V
MTBL0138
SAT470J
OK or NG
OK©GO TO 4.
NG©Check the following items:
+PNP switch (Refer to ªComponent Inspectionº, AT-333.)
+Harness for short or open between ignition switch and PNP switch (Main harness)
+Harness for short or open between PNP switch and TCM (Main harness)
+Diode (P, N positions)
TROUBLE DIAGNOSES FOR SYMPTOMS
21. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control and Throttle Position Switches Circuit Checks) (Cont'd)
AT-328

3 CHECK OVERDRIVE CONTROL SWITCH CIRCUIT (With CONSULT-II)
With CONSULT-II
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
3. Read out ªOVERDRIVE SWITCHº.
Check the signal of the overdrive control switch is indicated properly.
(Overdrive control switch ªONº displayed on CONSULT-II means overdrive ªOFFº.)
SAT645J
OK or NG
OK©GO TO 5.
NG©Check the following items:
+Overdrive control switch (Refer to ªComponent Inspectionº, AT-333.)
+Harness for short or open between TCM and overdrive control switch (Main harness)
+Harness of ground circuit for overdrive control switch (Main harness) for short or open
TROUBLE DIAGNOSES FOR SYMPTOMS
21. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control and Throttle Position Switches Circuit Checks) (Cont'd)
AT-329

4 CHECK OVERDRIVE CONTROL SWITCH CIRCUIT (Without CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Check voltage between TCM terminal 22 and ground when overdrive control switch is ªONº and ªOFFº.
Voltage:
Switch position ªONº:
Battery voltage
Switch position ªOFFº:
1V or less
SAT048K
OK or NG
OK©GO TO 6.
NG©Check the following items:
+Overdrive control switch (Refer to ªComponent Inspectionº, AT-333.)
+Harness for short or open between TCM and overdrive control switch (Main harness)
+Harness of ground circuit for overdrive control switch (Main harness) for short or open
TROUBLE DIAGNOSES FOR SYMPTOMS
21. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control and Throttle Position Switches Circuit Checks) (Cont'd)
AT-330

5 CHECK THROTTLE POSITION SWITCH CIRCUIT (With CONSULT-II)
With CONSULT-II
1. Apply vacuum to the throttle opener, then check the following. Refer to steps from 1 to 5 of ªPreparationº, ªSELF-DIAG-
NOSTIC PROCEDURE (Without CONSULT-II)º, AT-42. Ð Except for Euro-OBD/Refer to steps from 1 to 5 of
ªPreparationº, ªTCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)º, AT-61 Ð Euro-OBD
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
4. Read out ªCLOSED THL/SWº and ªW/O THRL/P-SWº depressing and releasing accelerator pedal.
Check the signal of throttle position switch is indicated properly.
MTBL0011
SAT702J
OK or NG
OK©GO TO 7.
NG©Check the following items:
+Throttle position switch Ð Refer to ªComponent Inspectionº, AT-333.
+Harness for short or open between ignition switch and throttle position switch (Main
harness)
+Harness for short or open between throttle position switch and TCM (Main harness)
TROUBLE DIAGNOSES FOR SYMPTOMS
21. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control and Throttle Position Switches Circuit Checks) (Cont'd)
AT-331

6 CHECK THROTTLE POSITION SWITCH CIRCUIT (Without CONSULT-II)
Without CONSULT-II
1. Apply vacuum to the throttle opener, then check the following. Refer to steps from 1 to 5 of ªPreparationº, ªSELF-DIAG-
NOSTIC PROCEDURE (Without CONSULT-II)º, AT-42. Ð Except for Euro-OBD/Refer to steps from 1 to 5 of
ªPreparationº, ªTCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)º, AT-61 Ð Euro-OBD
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Check voltage between TCM terminals 16, 17 and ground while depressing, and releasing accelerator pedal slowly.
(After warming up engine)
MTBL0137
SAT454JA
OK or NG
OK©GO TO 7.
NG©Check the following items:
+Throttle position switch Ð Refer to ªComponent Inspectionº, AT-333.
+Harness for short or open between ignition switch and throttle position switch (Main
harness)
+Harness for short or open between throttle position switch and TCM (Main harness)
7 CHECK DTC
Perform ªDIAGNOSTIC PROCEDUREº, AT-327
OK or NG
OK©INSPECTION END
NG©+Perform TCM input/output signal inspection.
+If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
TROUBLE DIAGNOSES FOR SYMPTOMS
21. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control and Throttle Position Switches Circuit Checks) (Cont'd)
AT-332

Diagnostic ProcedureNJAT0105SYMPTOM 1:
+Selector lever cannot be moved from ªPº position with key
in ON position and brake pedal applied.
+Selector lever can be moved from ªPº position with key in
ON position and brake pedal released.
+Selector lever can be moved from ªPº position when key
is removed from key cylinder.
SYMPTOM 2:
Ignition key cannot be removed when selector lever is set to
ªPº position. It can be removed when selector lever is set to
any position except ªPº.
1 CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK©GO TO 2.
NG©Repair key interlock cable. Refer to AT-341.
2 CHECK SELECTOR LEVER POSITION
Check selector lever position for damage.
OK or NG
OK©GO TO 3.
NG©Check selector lever. Refer to ªON-VEHICLE SERVICE Ð PNP Switch and Control
Cable Adjustmentº, AT-344.
3 CHECK POWER SOURCE
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Check voltage between stop lamp switch harness terminal 1 and ground.
Voltage: Battery voltage
SAT007K
OK or NG
OK©GO TO 4.
NG©Check the following items:
1. Harness for short or open between battery and stop lamp switch harness terminal 1
2. Fuse
3. Ignition switch (Refer to EL-10, ªPOWER SUPPLY ROUTINGº.)
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
AT-337