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Almera Tino V10 (2003 year). Manual - part 14

DTC CONTROL UNIT (EEP ROM)

AT-209

[EURO-OBD]

DTC CONTROL UNIT (EEP ROM)

PFP:31036

Description

ECS00996

The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.

ON BOARD DIAGNOSIS LOGIC

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted,
always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

With CONSULT-II

Turn ignition switch “ON” and select “DATA MONITOR” mode for
A/T with CONSULT-II.

Start engine.

Run engine for at least 2 seconds at idle speed.

If DTC is detected, go to

AT-210, "Diagnostic Procedure"

Without CONSULT-II

Follow the procedure “With CONSULT-II”.

SAT574J

Diagnostic trouble code

Malfunction is detected when...

Check item (Possible cause)

: CONT UNIT (EEP ROM)

TCM memory (EEP ROM) is malfunction-
ing.

●

TCM

SAT014K

SAT971J

AT-210

[EURO-OBD]

DTC CONTROL UNIT (EEP ROM)

Diagnostic Procedure

ECS00997

CHECK DTC

With CONSULT-II

Turn ignition switch “ON” and select “SELF DIAGNOSIS” mode for A/T with CONSULT-II.

Move selector lever to “R” position.

Depress accelerator pedal (Full throttle position).

Touch “ERASE”.

Turn ignition switch “OFF” position for 10 seconds.

Perform

AT-209, "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE"

Is the “CONT UNIT (EEP ROM)” displayed again?

Yes

>> Replace TCM.

>> INSPECTION END

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-211

[EURO-OBD]

TROUBLE DIAGNOSES FOR SYMPTOMS

PFP:00100

Wiring Diagram — AT — NONDTC

ECS00998

YAT386A

AT-212

[EURO-OBD]

TROUBLE DIAGNOSES FOR SYMPTOMS

YAT387A

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-213

[EURO-OBD]

1. O/D OFF Indicator Lamp Does Not Come On

ECS00999

SYMPTOM:
O/D OFF indicator lamp does not come on for about 2 seconds when turning ignition switch to “ON”.

CHECK TCM POWER SOURCE

Turn ignition switch to “ON” position.
(Do not start engine.)

Check voltage between TCM terminals 10, 19, 28 and ground.

Turn ignition switch to “OFF” position.

Check voltage between TCM terminal 28 and ground.

OK or NG

>> GO TO 2

>> Check the following items:

●

Harness for short or open between ignition switch and
TCM terminals 10, 19 and 28 (Main harness).

●

Refer to

AT-344, "Wiring Diagram — AT — MAIN"

●

Ignition switch and fuse Refer to EL-11, “Power Supply Routing”.

CHECK TCM GROUND CIRCUIT

Turn ignition switch to “OFF” position.

Disconnect TCM harness connector.

Check continuity between TCM terminals 25, 48 and ground.

If OK, check harness for short to ground and short to power.

OK or NG

>> GO TO 3

>> Repair open circuit or short to ground or short to power

in harness or connectors. Refer to

AT-344, "Wiring Dia-

gram — AT — MAIN"

CHECK LAMP CIRCUIT

Turn ignition switch to “OFF” position.

Check resistance between TCM terminals 13 and 10, 19.

Reinstall any part removed.

OK or NG

>> GO TO 4

>> Check the following items:

●

O/D OFF indicator lamp.
Refer to EL-102, “Combination Meter”.

●

Harness and fuse for short or open between ignition
switch and O/D OFF indicator lamp (Main harness)
Refer to EL-11, “Power Supply Routing”.

●

Harness for short or open between O/D OFF indicator lamp and TCM.

Voltage:

Battery voltage

Voltage:

Battery voltage

SCIA0713E

Continuity should exist.

SCIA0766E

Resistance:

50 - 100

Ω

SCIA0767E

AT-214

[EURO-OBD]

TROUBLE DIAGNOSES FOR SYMPTOMS

CHECK SYMPTOM

Check again.

OK or NG

>> INSPECTION END

>> 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

2. Engine Cannot Be Started In “P” and “N” Position

ECS0099A

SYMPTOM:

●

Engine cannot be started with selector lever in “P” or “N” position.

●

Engine can be started with selector lever in “D”, “2”, “1” or “R” position.

CHECK PNP SWITCH CIRCUIT

With CONSULT-II

Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to PNP switch circuit?

Without CONSULT-II

Does self-diagnosis show damage to PNP switch circuit?

Yes or No

Yes

>> Check PNP switch circuit. Refer to

AT-239, "21. TCM

Self-diagnosis Does Not Activate (PNP & Overdrive
Control Switches, and Throttle Position Sensor Circuit
Checks)"

>> GO TO 2

CHECK PNP SWITCH INSPECTION

Check for short or open of PNP switch harness connector terminals 1 and 2.
Refer to

AT-239, "21. TCM Self-diagnosis Does Not Activate (PNP &

Overdrive Control Switches, and Throttle Position Sensor Circuit
Checks)"

OK or NG

>> GO TO 3

>> Repair or replace PNP switch.

CHECK STARTING SYSTEM

Check starting system. Refer to SC-13, “Starting System”.

OK or NG

>> INSPECTION END

>> Repair or replace damaged parts.

3. In “P” Position, Vehicle Moves Forward Or Backward When Pushed

ECS0099B

SYMPTOM:
Vehicle moves when it is pushed forward or backward with selector lever in “P” position.

SCIA0706E

MCIA0102E

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-215

[EURO-OBD]

CHECK PARKING COMPONENTS

Check parking components. Refer to

AT-417, "OVERHAUL"

OK or NG

>> INSPECTION END

>> Repair or replace damaged parts.

SAT282F

AT-216

[EURO-OBD]

TROUBLE DIAGNOSES FOR SYMPTOMS

4. In “N” Position, Vehicle Moves

ECS0099C

SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.

CHECK PNP SWITCH CIRCUIT

With CONSULT-II

Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to PNP switch circuit?

Without CONSULT-II

Does self-diagnosis show damage to PNP switch circuit?

Yes or No

Yes

>> Check PNP switch circuit. Refer to

AT-239, "21. TCM

Self-diagnosis Does Not Activate (PNP & Overdrive
Control Switches, and Throttle Position Sensor Circuit
Checks)"

>> GO TO 2

CHECK CONTROL CABLE

Check control cable. Refer to

AT-412, "Control Cable Adjustment"

OK or NG

>> GO TO 3

>> Adjust control cable. Refer to

AT-412, "Control Cable

Adjustment"

CHECK A/T FLUID LEVEL

Check A/T fluid level again.

OK or NG

>> GO TO 4

>> Refill ATF.

SCIA0706E

SAT023JB

SAT638A

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-217

[EURO-OBD]

CHECK A/T FLUID CONDITION

Remove oil pan refer to

AT-410, "REMOVAL"

Check A/T fluid condition.

OK or NG

>> GO TO 5

>> 1. Disassemble A/T.

2. Check the following items:

–

Forward clutch assembly

–

Overrun clutch assembly

–

Reverse clutch assembly

CHECK SYMPTOM

Check again.
OK or NG

>> INSPECTION END

>> 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

5. Large Shock. “N”

→

“R” Position

ECS0099D

SYMPTOM:
There is large shock when changing from “N” to “R” position.

CHECK SELF-DIAGNOSTIC RESULTS

Does self-diagnosis show damage to A/T fluid temperature sensor,
line pressure solenoid valve or throttle position sensor circuit?

Yes or No

Yes

●

Check damaged circuit. Refer to the following items.

EURO-OBD

–

AT-166, "DTC P0745 LINE PRESSURE SOLENOID
VALVE"

–

AT-183, "DTC P1705 ACCELERATOR PEDAL POSI-
TION (APP) SENSOR"

–

AT-197, "DTC BATT/FLUID TEMP SEN (A/T FLUID

>> GO TO 2

CHECK THROTTLE POSITION SENSOR*

*: This sensor means accelerator pedal position (APP) sensor.

Refer to

AT-183, "DTC P1705 ACCELERATOR PEDAL POSITION

(APP) SENSOR"

OK or NG

>> GO TO 3

>> Repair or replace Accelerator pedal position (APP) sen-

sor.

SAT171B

SCIA0769E

MCIA0096E

AT-218

[EURO-OBD]

TROUBLE DIAGNOSES FOR SYMPTOMS

CHECK LINE PRESSURE

Check line pressure at idle with selector lever in “D” position. Refer
to

AT-67, "Line Pressure Test"

OK or NG

>> GO TO 4

>> 1. Remove control valve assembly. Refer to

AT-410,

"Control Valve Assembly and Accumulators"

2. Check the following items:

–

Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)

–

Line pressure solenoid valve

CHECK SYMPTOM

Check again.

OK or NG

>> INSPECTION END

>> 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

6. Vehicle Does Not Creep Backward In “R” Position

ECS0099E

SYMPTOM:
Vehicle does not creep backward when selecting “R” position.

CHECK A/T FLUID LEVEL

Check A/T fluid level again.

OK or NG

>> GO TO 2

>> Refill ATF.

SAT494G

SAT638A

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-219

[EURO-OBD]

CHECK STALL TEST

Check stall revolution with selector lever in “1” and “R” positions.
Refer to

AT-64, "Stall Test"

OK or NG

>> GO TO 3

OK in “1” position, NG in “R” position>>1.Remove

control

valve

assembly. Refer to

AT-410, "Control Valve Assembly

and Accumulators"

2. Check the following items:

–

Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)

–

Line pressure solenoid valve (

AT-166, "DTC P0745

LINE PRESSURE SOLENOID VALVE"

: EURO-OBD)

3. Disassemble A/T.

4. Check the following items:

–

Oil pump assembly

–

Torque converter

–

Reverse clutch assembly

–

High clutch assembly

–

Low & reverse brake assembly

–

Low one-way clutch

NG in both “1” and “R” positions>>GO TO 6

CHECK LINE PRESSURE

Check line pressure at idle with selector lever in “R” position. Refer
to

AT-67, "Line Pressure Test"

OK or NG

>> GO TO 4

>> 1. Remove control valve assembly. Refer to

AT-410,

"Control Valve Assembly and Accumulators"

2. Check the following items:

–

Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)

–

Line pressure solenoid valve (

AT-166, "DTC P0745

LINE PRESSURE SOLENOID VALVE"

: EURO-OBD)

3. Disassemble A/T.

4. Check the following item:

–

Oil pump assembly

SAT493G

SAT494G

AT-220

[EURO-OBD]

TROUBLE DIAGNOSES FOR SYMPTOMS

CHECK A/T FLUID CONDITION

Remove oil pan, refer to

AT-410, "REMOVAL"

Check A/T fluid condition.

OK or NG

>> GO TO 5

>> GO TO 6

CHECK SYMPTOM

Check again.
OK or NG

>> INSPECTION END

>> 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

DETECT MALFUNCTIONING ITEM

Remove control valve assembly. Refer to

AT-410, "Control Valve Assembly and Accumulators"

Check the following items:

–

Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)

–

Line pressure solenoid valve (

AT-166, "DTC P0745 LINE PRESSURE SOLENOID VALVE"

: EURO-OBD)

Disassemble A/T.

Check the following items:

–

Oil pump assembly

–

Torque converter

–

Reverse clutch assembly

–

High clutch assembly

–

Low & reverse brake assembly

–

Low one-way clutch

OK or NG

>> GO TO 5

>> Repair or replace damaged parts.

SAT171B

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-221

[EURO-OBD]

7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position

ECS0099F

SYMPTOM:
Vehicle does not creep forward when selecting “D”, “2” or “1” position.

CHECK A/T FLUID LEVEL

Check A/T fluid level again.

OK or NG

>> GO TO 2

>> Refill ATF.

CHECK STALL TEST

Check stall revolution with selector lever in “D” position. Refer to

AT-

64, "Stall Test"

OK or NG

>> GO TO 3

>> GO TO 6

CHECK LINE PRESSURE

Check line pressure at idle with selector lever in “D” position. Refer
to

AT-67, "Line Pressure Test"

OK or NG

>> GO TO 4

>> 1. Remove control valve assembly. Refer to

AT-410,

"Control Valve Assembly and Accumulators"

2. Check the following items:

–

Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)

–

Line pressure solenoid valve (

AT-166, "DTC P0745

LINE PRESSURE SOLENOID VALVE"

)

3. Disassemble A/T.

4. Check the following item:

–

Oil pump assembly

SAT638A

SAT493G

SAT494G

AT-222

[EURO-OBD]

TROUBLE DIAGNOSES FOR SYMPTOMS

CHECK A/T FLUID CONDITION

Remove oil pan, refer to

AT-410, "REMOVAL"

Check A/T fluid condition.

OK or NG

>> GO TO 5

>> GO TO 6

CHECK SYMPTOM

Check again.
OK or NG

>> INSPECTION END

>> 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

DETECT MALFUNCTIONING ITEM

Remove control valve assembly. Refer to

AT-410, "Control Valve Assembly and Accumulators"

Check the following items:

–

Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)

–

Line pressure solenoid valve (

AT-166, "DTC P0745 LINE PRESSURE SOLENOID VALVE"

: EURO-OBD)

Disassemble A/T.

Check the following items:

–

Oil pump assembly

–

Forward clutch assembly

–

Forward one-way clutch

–

Low one-way clutch

–

Low & reverse brake assembly

–

Torque converter

OK or NG

>> GO TO 5

>> Repair or replace damaged parts.

SAT171B

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-223

[EURO-OBD]

8. Vehicle Cannot Be Started From D

ECS0099G

SYMPTOM:
Vehicle cannot be started from D

on Cruise test — Part 1.

CHECK SYMPTOM

Is 6. Vehicle Does Not Creep Backward In “R” Position OK?

Yes or No

Yes

>> GO TO 2

>> Go to

AT-218, "6. Vehicle Does Not Creep Backward In “R” Position"

CHECK SELF-DIAGNOSTIC RESULTS

Does self-diagnosis show damage to vehicle speed sensor·A/T (rev-
olution sensor), shift solenoid valve A, B or vehicle speed sen-
sor·MTR after cruise test?

Yes or No

Yes

●

Check damaged circuit. Refer to the following items.

EURO-OBD

–

AT-125, "DTC P0720 VEHICLE SPEED SENSOR A/

T (REVOLUTION SENSOR)"

–

AT-173, "DTC P0750 SHIFT SOLENOID VALVE A"

–

AT-178, "DTC P0755 SHIFT SOLENOID VALVE B"