Almera Tino V10 (2003 year). Manual - part 143

TROUBLE DIAGNOSIS

EC-1307

[YD (WITHOUT EURO-OBD)]

*1: This signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.
*2: For YD22DDTi engine models

NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

Major Sensor Reference Graph in Data Monitor Mode

EBS014T3

The following are the major sensor reference graphs in “DATA MONITOR” mode.

PW/ST SIGNAL

●

Engine: After warming up, idle
the engine

Steering wheel is in neutral posi-
tion. (Forward direction)

OFF

Steering wheel is turned.

BRAKE SW

●

Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

IGN SW

●

Ignition switch: ON

→

OFF

→

OFF

ACT CR PRESS

●

Engine: After warming up

●

Air conditioner switch: OFF

●

Shift lever: Neutral position

●

No-load

Idle

20 - 30 MPa

2,000 rpm

45 - 55 MPa

MAIN INJ WID

●

Engine: After warming up

●

Shift lever: Neutral position

●

Idle speed

No-load

0.68 - 0.78 msec

Blower fan switch: ON
Rear window defogger switch: ON

0.78 - 0.88 msec

GLOW RLY

Refer to

EC-1495, "GLOW CONTROL SYSTEM"

PUMP CURRENT

●

Engine: After warming up

●

Air conditioner switch: OFF

●

Shift lever: Neutral position

●

No-load

Idle

1,700 - 1,900 mA

2,000 rpm

1,600 - 1,800 mA

COOLING FAN

●

When cooling fan is stopped.

OFF

●

When cooling fans operate at low speed.

LOW

●

When cooling fans operate at high speed.

EGR VOL CON/V

●

Engine: After warming up

●

Air conditioner switch: OFF

●

Shift lever: Neutral position

●

No-load

After 1 minute at idle

More than 10 steps

Revving engine from idle to 3,600
rpm

0 step

INT/A VOLUME

●

Engine: After warming up, idle the engine

150 - 450 mg/st

INT/M PRES SE*

●

Engine: After warming up

●

Air conditioner switch: OFF

●

Shift lever: Neutral position

●

No-load

Idle

Approx. 100 kPa

2,800 rpm

Approx. 126 kPa

4,000 rpm

Approx. 106 kPa

BARO SEN

●

Ignition switch: ON

Altitude
Approx. 0m: Approx. 100.62 kPa

(1.0062 bar, 1.026 kg/cm

, 14.59

psi)
Approx. 1,000 m: Approx. 88.95

kPa (0.8895 bar, 0.907 kg/cm

12.90 psi)
Approx. 1,500 m: Approx. 83.16

kPa (0.8316 bar, 0.848 kg/cm

12.06 psi)
Approx. 2,000 m: Approx. 78.36

kPa (0.7836 bar, 0.799 kg/cm

11.36 psi)

CYL COUNT

●

Engine is running

→

MONITOR ITEM

CONDITION

SPECIFICATION

EC-1308

[YD (WITHOUT EURO-OBD)]

TROUBLE DIAGNOSIS

ACCEL POS SEN, “CKPS·RPM (TDC)”, “MAS AIR/FL SE”

Below is the data for “ACCEL POS SEN”, “CKPS·RPM (TDC)” and “MAS AIR/FL SE” when revving engine
quickly up to 3,000 rpm under no load after warming up engine to the normal operating temperature.
Each value is for reference, the exact value may vary.

SEF321Y

TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT

EC-1309

[YD (WITHOUT EURO-OBD)]

TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT

PFP:00006

Description

EBS014T4

Intermittent incidents (I/I) may occur. In many cases, the incident resolves itself (the part or circuit function
returns to normal without intervention). It is important to realize that the symptoms described in the customer's
complaint often do not recur on DTC visits. Realize also that the most frequent cause of I/I occurrences is poor
electrical connections. Because of this, the conditions under which the incident occurred may not be clear.
Therefore, circuit checks made as part of the standard diagnostic procedure may not indicate the specific mal-
functioning area.

COMMON I/I REPORT SITUATIONS

Diagnostic Procedure

EBS014T5

INSPECTION START

Erase DTCs. Refer to

EC-1272, "HOW TO ERASE DTC"

>> GO TO 2.

CHECK GROUND TERMINALS

Check ground terminals for corroding or loose connection.
Refer to GI-21, “HOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENT”, “Circuit
Inspection”, “GROUND INSPECTION”.

OK or NG

>> GO TO 3.

>> Repair or replace.

SEARCH FOR ELECTRICAL INCIDENT

Perform GI-21, “HOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENT”, “Incident
Simulation Tests”.

OK or NG

>> INSPECTION END

>> Repair or replace.

STEP in Work Flow

Situation

The CONSULT-II is used. The SELF-DIAG RESULTS screen shows time data other than “0”.

III

The symptom described by the customer does not recur.

DTC does not appear during the DTC Confirmation Procedure.

The Diagnostic Procedure for XXXX does not indicate the malfunctioning area.

EC-1310

[YD (WITHOUT EURO-OBD)]

MAIN POWER SUPPLY AND GROUND CIRCUIT

PFP:24110

ECM Terminals and Reference Value

EBS014T6

Remarks: Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage)

1
2
3

B
B
B

ECM ground

[Engine is running]

●

Idle speed

Approximately 0V

105

113

G
G

ECM relay (self-shutoff)

[Ignition switch ON]
[Ignition switch OFF]

●

For a few seconds after turning ignition
switch OFF

Approximately 1.2V

[Ignition switch OFF]

●

More than a few seconds after turning
ignition switch OFF

BATTERY VOLTAGE
(11 - 14V)

107
108

W/R
W/R

Ignition switch

[Ignition switch ON]

BATTERY VOLTAGE
(11 - 14V)

114

ECM ground

[Engine is running]

●

Idle speed

Approximately 0V

119

120

R
R

Power supply for ECM

[Ignition switch ON]

BATTERY VOLTAGE
(11 - 14V)

121

W/L

Power supply for ECM
(Back-up)

[Ignition switch OFF]

BATTERY VOLTAGE
(11 - 14V)

MAIN POWER SUPPLY AND GROUND CIRCUIT

EC-1311

[YD (WITHOUT EURO-OBD)]

Wiring Diagram

EBS014T7

MBWA0653E

EC-1312

[YD (WITHOUT EURO-OBD)]

MAIN POWER SUPPLY AND GROUND CIRCUIT

Diagnostic Procedure

EBS014T8

INSPECTION START

Start engine.
Is engine running?

Yes or No

Yes

>> GO TO 7.

>> GO TO 2.

CHECK ECM POWER SUPPLY CIRCUIT-I

Turn ignition switch OFF, wait at least 10 seconds and then turn ON.

Check voltage between ECM terminals 107, 108 and ground
with CONSULT-II or tester.

OK or NG

>> GO TO 4.

>> GO TO 3.

DETECT MALFUNCTIONING PART

Check the following.

●

Fuse block (J/B) connector M1

●

10A fuse

●

Harness for open or short between ECM and fuse

>> Repair open circuit or short to ground or short to power in harness or connectors.

CHECK GROUND CONNECTIONS

Turn ignition switch OFF.

Loosen and retighten body ground screw. Refer to

EC-1317,

"Ground Inspection"

OK or NG

>> GO TO 5.

>> Repair or replace ground connection.

Voltage: Battery voltage

MBIB0610E

MBIB0915E

MAIN POWER SUPPLY AND GROUND CIRCUIT

EC-1313

[YD (WITHOUT EURO-OBD)]

CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT

Disconnect ECM harness connector.

Check harness continuity between ECM terminals 1, 2, 3, 114 and body ground.
Refer to Wiring Diagram.

Also check harness for short to power.

OK or NG

>> GO TO 7.

>> GO TO 6.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors M71, F45

●

Harness for open or short between ECM and body ground

>> Repair open circuit or short to power in harness or connectors.

CHECK ECM POWER SUPPLY CIRCUIT-II

Reconnect ECM harness connector.

Turn ignition switch ON and then OFF.

Check voltage between ECM terminals 119, 120 and ground
with CONSULT-II or tester.

OK or NG

>> GO TO 13.

NG (Battery voltage does not exist)>>GO TO 8.
NG (Battery voltage exists for more then a few seconds)>>GO TO

10.

Continuity should exist.

Voltage:

After turning ignition switch OFF, battery
voltage will exist for a few seconds, then
drop to approximately 0V.

MBIB0611E

EC-1314

[YD (WITHOUT EURO-OBD)]

MAIN POWER SUPPLY AND GROUND CIRCUIT

CHECK ECM POWER SUPPLY CIRCUIT-III

Disconnect ECM relay.

Check voltage between relay terminals 1, 6 and ground with
CONSULT-II or tester.

OK or NG

>> GO TO 10.

>> GO TO 9.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E105, M10

●

20A fuse

●

Harness for open or short between ECM relay and battery

>> Repair open circuit or short to ground or short to power in harness or connectors.

10.

CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

Disconnect ECM relay.

Disconnect ECM harness connector.

Check harness continuity between ECM terminals 105, 113 and
ECM relay terminal 2. Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 11.

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

in harness or connectors.

MBIB0922E

Voltage: Battery voltage

PBIB0359E

Continuity should exist.

MBIB0922E

MAIN POWER SUPPLY AND GROUND CIRCUIT

EC-1315

[YD (WITHOUT EURO-OBD)]

11.

CHECK ECM POWER SUPPLY CIRCUIT-IV

Check harness continuity between ECM terminals 119, 120 and ECM relay terminal 7.
Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 12.

>> Repair open circuit or short to ground or short to power in harness or connectors.

12.

CHECK ECM RELAY

Refer to

EC-1316, "Component Inspection"

OK or NG

>> GO TO 13.

>> Replace ECM relay.

13.

CHECK ECM POWER SUPPLY CIRCUIT-V

Check voltage between ECM terminal 121 and ground with CON-
SULT-II or tester.

OK or NG

>> GO TO 15.

>> GO TO 14.

14.

DETECT MALFUNCTIONING PART

Check the following.

●

20A fuse

●

Harness connectors E105, M10

●

Harness for open or short between ECM and fuse

>> Repair open circuit or short to ground or short to power in harness or connectors.

15.

CHECK GROUND CONNECTIONS

Turn ignition switch OFF.

Loosen and retighten body ground screw. Refer to

EC-1317,

"Ground Inspection"

OK or NG

>> GO TO 16.

>> Repair or replace ground connection.

Continuity should exist.

Voltage: Battery voltage

MBIB0026E

MBIB0915E

EC-1316

[YD (WITHOUT EURO-OBD)]

MAIN POWER SUPPLY AND GROUND CIRCUIT

16.

CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT

Check harness continuity between ECM terminals 1, 2, 3, 114 and body ground.
Refer to Wiring Diagram.

Also check harness for short to power.

OK or NG

>> GO TO 17.

>> Repair open circuit or short to power in harness or connectors.

17.

CHECK INTERMITTENT INCIDENT

Refer to

EC-1309, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

Component Inspection

EBS014T9

ECM RELAY

Apply 12V direct current between ECM relay terminals 1 and 2.

Check continuity between relay terminals 3 and 5, 6 and 7.

If NG, replace ECM relay.

Continuity should exist.

Condition

Continuity

12V direct current supply between terminals 1 and 2

Yes

OFF

PBIB0077E

MAIN POWER SUPPLY AND GROUND CIRCUIT

EC-1317

[YD (WITHOUT EURO-OBD)]

Ground Inspection

EBS014TA

Ground connections are very important to the proper operation of electrical and electronic circuits. Ground
connections are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can
become an unwanted resistance. This unwanted resistance can change the way a circuit works.
Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drasti-
cally affect an electronically controlled circuit. A poor or corroded ground can easily affect the circuit. Even
when the ground connection looks clean, there can be a thin film of rust on the surface.
When inspecting a ground connection follow these rules:

●

Remove the ground bolt or screw.

●

Inspect all mating surfaces for tarnish, dirt, rust, etc.

●

Clean as required to assure good contact.

●

Reinstall bolt or screw securely.

●

Inspect for “add-on” accessories which may be interfering with the ground circuit.

●

If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the
wires are clean, securely fastened and providing a good ground path. If multiple wires are cased in one
eyelet make sure no ground wires have excess wire insulation.

For detailed ground distribution information, refer to EL-23, “GROUND”.

PBIB1870E

EC-1318

[YD (WITHOUT EURO-OBD)]

DTC U1000 CAN COMMUNICATION LINE

PFP:23710

Description

EBS014TB

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 error detection ability. Many elec-
tronic 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 connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

On Board Diagnosis Logic

EBS014TC

The MI will not light up for this self-diagnosis.

DTC Confirmation Procedure

EBS014TD

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.

WITH CONSULT-II

Turn ignition switch ON and wait at least 3 seconds.

Select “DATA MONITOR” mode with CONSULT-II.

If DTC is detected, go to

EC-1320, "Diagnostic Procedure"

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

U1000

CAN communication line

●

ECM can not communicate to other control unit.

●

ECM can not communicate for more than the
specified time.

●

Harness or connectors
(CAN communication line is open
or shorted)

SEF817Y

DTC U1000 CAN COMMUNICATION LINE

EC-1319

[YD (WITHOUT EURO-OBD)]

Wiring Diagram

EBS014TE

YEC495A

EC-1320

[YD (WITHOUT EURO-OBD)]

DTC U1000 CAN COMMUNICATION LINE

Diagnostic Procedure

EBS014TF

INSPECTION START

Turn ignition switch ON.

Select “CAN DIAG SUPPORT MNTR” in “DATA MONITOR” mode with CONSULT-II.

Print out the CONSULT-II screen.
Models with ESP

Models without ESP

>> Go to EL-459, “CAN COMMUNICATION”.

MBIB0868E

MBIB0009E

DTC P0016 CKP - CMP CORRELATION

EC-1321

[YD (WITHOUT EURO-OBD)]

DTC P0016 CKP - CMP CORRELATION

PFP:10328

On Board Diagnosis Logic

EBS014TG

The MI will not light up for this self-diagnosis.

DTC Confirmation Procedure

EBS014TH

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.

WITH CONSULT-II

Turn ignition switch ON.

Select “DATA MONITOR” mode with CONSULT-II.

Start engine and let it idle for at least 5 seconds.

If DTC is detected, go to

EC-1321, "Diagnostic Procedure"

Diagnostic Procedure

EBS014TI

CHECK CAMSHAFT POSITION SENSOR

Refer to

EC-1411, "Component Inspection"

OK or NG