Page 556 of 1767
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to ªSTARTº for at
least 2 seconds.)
4) Keep engine speed at more than 2,000 rpm for at least 10
seconds.
5) If DTC is detected, go to ªDiagnostic Procedureº, EC-197.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to ªSTARTº for at
least 2 seconds.)
3) Keep engine speed at more than 2,000 rpm for at least 10
seconds.
4) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn
ªONº.
5) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with
ECM.
6) If DTC is detected, go to ªDiagnostic Procedureº, EC-197.
SEF817Y
DTC 0707 P7×F/INJ TIMG FBZD30DDTi
EC-194
Page 560 of 1767

4 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M787, F66 (LHD models)
IHarness connectors F108, E225
IHarness connectors E220, E231
IHarness connectors M842, F135 (RHD models)
IHarness for open or short between electronic control fuel injection pump and ECM
IHarness for open or short between electronic control fuel injection pump and ECM relay
ERepair open circuit or short to ground or short to power in harness or connectors.
5 CHECK ELECTRONIC CONTROL FUEL INJECTION PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Check harness continuity between electronic control fuel injection pump terminal 6 and ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OKEGO TO 7.
NGEGO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors E231, E220
IHarness for open or short between electronic control fuel injection pump and engine ground
ERepair open circuit or short to ground or short to power in harness or connectors.
7 CHECK COMMUNICATION LINE FOR OPEN AND SHORT
1. Check continuity between the following terminals. Refer to Wiring Diagram.
MTBL0444
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OKEGO TO 9.
NGEGO TO 8.
8 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors E231, E220
IHarness connectors E227, F106
IHarness connectors F135, M842 (RHD models)
IHarness for open or short between electronic control fuel injection pump and ECM
ERepair open circuit or short to ground or short to power in harness or connectors.
DTC 0707 P7×F/INJ TIMG FBZD30DDTi
Diagnostic Procedure (Cont'd)
EC-198
Page 562 of 1767
Description
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
Malfunction is detected when ... Check Items (Possible Cause)
IAn excessively high or low voltage from the absolute pressure
sensor (built-into ECM) is sent to ECM.IECM
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and wait at least 2 seconds.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-201.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Start engine and wait at least 2 seconds.
3) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn
ªONº.
4) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with
ECM.
5) If DTC is detected, go to ªDiagnostic Procedureº, EC-201.
SEC220B
SEF817Y
DTC 0802 ECM 10ZD30DDTi
EC-200
Page 564 of 1767
Description
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
Malfunction is detected when ... Check Items (Possible Cause)
IECM input signal processing function is malfunctioning.IECM
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Wait at least 1 second.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-203.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 1 second.
2) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn
ªONº.
3) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with
ECM.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-203.
SEC220B
SEF817Y
DTC 0804 ECM 11ZD30DDTi
EC-202
Page 575 of 1767
Description
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
Malfunction is detected when ... Check Items (Possible Cause)
IECM input signal processing function is malfunctioning.IECM
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Turn ignition switch ªOFFº, wait at least 20 seconds and then
turn ªONº.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-214.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Turn ignition switch ªOFFº, wait at least 20 seconds and then
turn ªONº.
3) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with
ECM.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-214.
SEC220B
SEF817Y
DTC 0903 ECM 15ZD30DDTi
EC-213
Page 577 of 1767

Component Description
The charge air pressure sensor detects pressure in the exit side of
the charge air cooler. The sensor output voltage to the ECM
increases as pressure increases. The charge air pressure sensor
is not used to control the engine system under normal conditions.
ECM Terminals and Reference Value
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 damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
46 GCharge air pressure sen-
sorEngine is running.
Warm-up condition
Idle speedApproximately 2.0V
On Board Diagnosis Logic
Malfunction is detected when ... Check Items (Possible Cause)
IAn excessively high or low voltage from the sensor is sent to
ECM.IHarness or connectors
(The sensor circuit is open or shorted.)
ICharge air pressure sensor
SEF340VA
SEF627RA
DTC 0905 TURBO PRESSUREZD30DDTi
EC-215
Page 581 of 1767

Diagnostic Procedure
1 CHECK CHARGE AIR PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Stop engine.
2. Disconnect charge air pressure sensor harness connector.
SEF283Z
3. Turn ignition switch ªONº.
4. Check voltage between charge air pressure sensor terminal 1 and ground with CONSULT-II or tester.
SEF306Z
OK or NG
OKEGO TO 3.
NGEGO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors E225, F108
IHarness connectors F135, M842 (RHD models)
IHarness for open or short between charge air pressure sensor and ECM
ERepair open circuit or short to ground or short to power in harness or connectors.
3 CHECK CHARGE AIR PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Check harness continuity between charge air pressure sensor terminal 3 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OKEGO TO 5.
NGEGO TO 4.
DTC 0905 TURBO PRESSUREZD30DDTi
EC-219
Page 582 of 1767

4 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors E225, F108
IHarness connectors F135, M852 (RHD models)
IHarness for open or short between ECM and charge air pressure sensor
ERepair open circuit or short to ground or short to power in harness or connectors.
5 CHECK CHARGE AIR PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 46 and charge air pressure sensor terminal 2. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OKEGO TO 7.
NGEGO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors E225, F108
IHarness connectors F135, M842 (RHD models)
IHarness for open or short between charge air pressure sensor and ECM
ERepair open circuit or short to ground or short to power in harness or connectors.
7 CHECK CHARGE AIR PRESSURE SENSOR
1. Remove charge air pressure sensor with its harness connector connected.
2. Turn ignition switch ªONº.
3. Use pump to apply pressure to charge air pressure sensor as shown in the figure.
CAUTION:
IAlways calibrate the pressure pump gauge when using it.
IInspection should be done at room temperature [10 - 30ÉC (50 - 86ÉF)].
4. Check the output voltage between charge air pressure sensor terminal 2 and engine ground.
SEF449Z
OK or NG
OKEGO TO 8.
NGEReplace charge air pressure sensor.
DTC 0905 TURBO PRESSUREZD30DDTi
Diagnostic Procedure (Cont'd)
EC-220