Nissan Maxima. Manual - part 1144

TM-40

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

DIAGNOSIS SYSTEM (TCM)

SOLMON1 (A)

X

X

Torque converter clutch solenoid valve monitor 
current

SOLMON2 (A)

X

X

Line pressure solenoid valve monitor current

SOLMON3 (A)

X

X

Secondary pressure solenoid valve monitor cur-
rent

RANGE SW 3M (On/Off)

X

—

Transmission range switch 3 ON-OFF status 
monitor

RANGE SW 4 (On/Off)

X

—

Transmission range switch 4 ON-OFF status

RANGE SW 3 (On/Off)

X

—

Transmission range switch 3 ON-OFF status

RANGE SW 2 (On/Off)

X

—

Transmission range switch 2 ON-OFF status

RANGE SW 1 (On/Off)

X

—

Transmission range switch 1 ON-OFF status

BRAKESW (On/Off)

X

X

Stop lamp switch (signal input via CAN communi-
cations)

FULL SW (On/Off)

X

X

Signal input via CAN communications

IDLE SW (On/Off)

X

X

SPORT MODE SW (On/Off)

X

X

Not mounted but displayed.

STRDWNSW (On/Off)

X

—

Responds only to vehicles with addle shifter

STRUPSW (On/Off)

X

—

DOWNLVR (On/Off)

X

—

Responds only to vehicles with manual mode

UPLVR (On/Off)

X

—

NONMMODE (On/Off)

X

—

MMODE (On/Off)

X

—

INDLRNG (On/Off)

—

—

—

INDDRNG (On/Off)

—

—

“D” position indicator output

INDNRNG (On/Off)

—

—

“N” position indicator output

INDRRNG (On/Off)

—

—

“R” position indicator output

INDPRNG (On/Off)

—

—

“P” position indicator output

CVT LAMP (On/Off)

—

—

—

SPORT MODE IND (On/Off)

—

—

Not mounted but displayed.

MMODE IND (On/Off)

—

—

—

SMCOIL D (On/Off)

—

—

Step motor coil “D” energizing status

SMCOIL C (On/Off)

—

—

Step motor coil “C” energizing status

SMCOIL B (On/Off)

—

—

Step motor coil “B” energizing status

SMCOIL A (On/Off)

—

—

Step motor coil “A” energizing status

LUSEL SOL OUT (On/Off)

—

—

—

REV LAMP (On/Off)

—

 X

—

STRTR RLY OUT (On/Off)

—

—

Starter relay

Monitored item (Unit)

Monitor item selection

Remarks

 ECU IN-

PUT SIG-

NALS

MAIN SIG-

NALS

SELEC-

TION 

FROM 
MENU

DIAGNOSIS SYSTEM (TCM)

TM-41

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

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Diagnostic Tool Function

INFOID:0000000010113454

OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)

Refer to 

EC-127, "GST (Generic Scan Tool)"

.

LUSEL SOL MON (On/Off)

—

—

—

STRTR RLY MON (On/Off)

—

—

Starter relay monitor

VDC ON (On/Off)

X

—

—

TCS ON (On/Off)

X

—

—

ABS ON (On/Off)

X

—

—

ACC ON (On/Off)

X

—

Not mounted but displayed.

RANGE

—

X

Indicates position is recognized by TCM. Indi-
cates a specific value required for control when 
fail-safe function is activated.

M GEAR POS

—

X

Not mounted but displayed.

CVT-A

—

—

—

CVT-B

—

—

—

Monitored item (Unit)

Monitor item selection

Remarks

 ECU IN-

PUT SIG-

NALS

MAIN SIG-

NALS

SELEC-

TION 

FROM 
MENU

TM-42

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

U0100 LOST COMMUNICATION (ECM A)

DTC/CIRCUIT DIAGNOSIS

U0100 LOST COMMUNICATION (ECM A)

DTC Logic

INFOID:0000000010113455

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start the engine and wait for at least 5 seconds.

2. Check the first trip DTC.
Is “U0100” detected?

YES

>> Go to 

TM-42, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010113456

For the diagnosis procedure, refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

. 

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

U0100

Lost Communication With 
ECM/PCM A 

When the ignition switch is ON, TCM is un-
able to receive the CAN communications 
signal from ECM continuously for 2 sec-
onds or more.

• ECM
• Harness or connector

(CAN communication line is open or 
shorted)

U1000 CAN COMM CIRCUIT

TM-43

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

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U1000 CAN COMM CIRCUIT

Description

INFOID:0000000010113457

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 and CAN-L) allowing a high rate of information transmission with

less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000010113458

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

NOTE:

Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.

Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

With CONSULT

1. Turn ignition switch ON.

2. Start engine and wait for at least 6 seconds.

3. Perform “Self Diagnostic Results” in “TRANSMISSION”.

With GST

Follow the procedure “With CONSULT”.
Is “U1000” detected?

YES

>> Go to 

TM-43, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000010113459

1.

CHECK CAN COMMUNICATION CIRCUIT

With CONSULT

1. Turn ignition switch ON and start engine.

2. Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “U1000” indicated?

YES

>> Go to LAN section. Refer to 

LAN-24, "CAN System Specification Chart"

.

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

U1000

CAN Communication Line

When TCM is not transmitting or receiving 
CAN communication signal for 2 seconds or 
more.

Harness or connectors
(CAN communication line is open or short-
ed.)