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DTC P2228, P2229 BARO SENSOR
EC-293
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DTC P2228, P2229 BARO SENSORPFP:23731
DescriptionEBS01KLI
The barometric pressure sensor is built into ECM. The sensor
detects ambient barometric pressure and sends the voltage signal to
the microcomputer.
On Board Diagnosis LogicEBS01KLJ
The MI will not light up for these self-diagnoses.
DTC Confirmation ProcedureEBS01KLK
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
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go toEC-294, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go toEC-294, "
Diagnostic Procedure".
MBIB0625E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2228
2228Barometric pressure sen-
sor circuit low inputAn excessively low voltage from the barometric
pressure sensor (built-into ECM) is sent to ECM.
lECM
P2229
2228Barometric pressure sen-
sor circuit high inputAn excessively high voltage from the barometric
pressure sensor (built-into ECM) is sent to ECM.
SEF058Y
Page 1274 of 3171
EC-294
DTC P2228, P2229 BARO SENSOR
Diagnostic Procedure
EBS01KLL
1.INSPECTION START
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4. PerformEC-293, "
DTC Confirmation Procedure",again.
5. Is DTC P2228 or P2229 displayed again?
Without CONSULT-II
1. Turn ignition switch ON.
2. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer toEC-27
.
3. PerformEC-293, "
DTC Confirmation Procedure",again.
4. Is DTC 2228 or 2229 displayed again?
Ye s o r N o
Yes >>GOTO2.
No >>INSPECTION END
2.REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer toBL-172, "
ECM
Re-communicating Function".
3. Perform Fuel Pump Learning Valve Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
4. Perform Injector Adjustment Value Registration. Refer toEC-25, "
Injector Adjustment Value Registration".
>>INSPECTION END
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GLOW CONTROL SYSTEM
EC-295
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GLOW CONTROL SYSTEMPFP:25230
DescriptionEBS01KLM
SYSTEM DESCRIPTION
*: The output signal is sent from the ECM through CAN communication line.
When engine coolant temperature is more than approximately 80°C(176°F), the glow relay turns off.
When engine coolant temperature is lower than approximately 80°C(176°F):
lIgnition switch ON
After ignition switch has turned to ON, the glow relay turns ON for a certain period of time in relation to
engine coolant temperature, allowing current to flow through glow plug.
lCranking
The glow relay turns ON, allowing current to flow through glow plug.
lSta rti ng
After engine has started, current continues to flow through glow plug (after-glow mode) for a certain period
in relation to engine coolant temperature.
The glow indicator lamp turns ON for a certain period of time in relation to engine coolant temperature at the
time glow relay is turned ON.
COMPONENT DESCRIPTION
Glow Plug
The glow plug is provided with a ceramic heating element to obtain a
high-temperature resistance. It glows in response to a signal sent
from the ECM, allowing current to flow through the glow plug via the
glow relay.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor Engine speed
Glow controlGlow lamp*
Glow relay
Glow plugs Engine coolant temperature sensor Engine coolant temperature
SEF376Y
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EC-296
GLOW CONTROL SYSTEM
Wiring Diagram
EBS01KLN
MBWA1329E
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GLOW CONTROL SYSTEM
EC-297
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Diagnostic ProcedureEBS01KLO
1.INSPECTION START
Check fuel level, fuel supplying system, starter motor, etc.
OK or NG
OK >> GO TO 2.
NG >> Correct.
2.CHECK INSTALLATION
Check that glow plug nut (1) and all glow plug connecting plate nuts
(2) are installed properly.
OK or NG
OK >> GO TO 3.
NG >> Install properly.
3.CHECK GLOW INDICATOR LAMP OPERATION
With CONSULT-II
1. Turn ignition switch ON.
2. Select “COOLAN TEMP/S” in “DATA MONITOR” mode with
CONSULT-II.
3. Confirm that “COOLAN TEMP/S” indicates below 80°C(176°F).
If it indicates above 80°C(176°F), cool down engine.
4. Turn ignition switch OFF, wait at least 5 seconds and then turn
ON.
5. Make sure that glow indicator lamp is turned ON for 1.5 seconds
or more after turning ignition switch ON, and then glow indicator
lamp turned OFF.
Without CONSULT-II
1. Set the tester probe between ECM terminal 51 (engine coolant
temperature sensor signal) and ground.
2. Confirm that the voltage indicates above 1.53V. If it indicates
below 1.53V, cool down engine.
3. Turn ignition switch OFF, wait at least 5 seconds and then turn
ON.
4. Make sure that glow indicator lamp is turned ON for 1.5 seconds
or more after turning ignition switch ON, and then glow indicator
lamp turned OFF.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
MBIB1219E
SEF013Y
PBIB2216E
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EC-298
GLOW CONTROL SYSTEM
4.CHECK GLOW CONTROL SYSTEM OVERALL FUNCTION
With CONSULT-II
1. Select “COOLAN TEMP/S” in “DATA MONITOR” mode with
CONSULT-II.
2. Confirm that “COOLAN TEMP/S” indicates approximately 25°C
(77°F). If NG, cool down engine.
3. Turn ignition switch OFF.
4. Set voltmeter probe between glow plug and engine body.
5. Turn ignition switch ON.
6. Check the voltage between glow plug and engine body under
the following conditions.
Without CONSULT-II
1. Set the tester probe between ECM terminal 51 (engine coolant
temperature sensor signal) and ground.
2. Confirm that the voltage indicates approximately 3.62V. If NG,
cool down engine.
3. Turn ignition switch OFF.
4. Set voltmeter probe between glow plug and engine body.
5. Turn ignition switch ON.
6. Check the voltage between glow plug and engine body under
the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
SEF013Y
Conditions Voltage
For 20 seconds after turning ignition switch ON Battery voltage
More than 20 seconds after turning ignition
switch ONApprox. 0V
PBIB0425E
PBIB2216E
Conditions Voltage
For 20 seconds after turning ignition switch ON Battery voltage
More than 20 seconds after turning ignition
switch ONApprox. 0V
PBIB0425E
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GLOW CONTROL SYSTEM
EC-299
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EC
5.CHECK DTC
Check that DTC U1000 is not displayed.
Ye s o r N o
Yes >> Perform trouble diagnoses for DTC U1000, refer toEC-79, "DTC U1000 CAN COMMUNICATION
LINE".
No >> GO TO 6.
6.CHECK COMBINATON METER OPERATION
Does combination meter operate normally?
Ye s o r N o
Ye s > > G O T O 1 4 .
No >> Check combination meter circuit. Refer toDI-4, "
COMBINATION METERS".
7.CHECK GLOW RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect glow relay (1).
3. Check voltage between glow relay terminals 1, 3 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the following.
l60A fusible link
lHarness for open or short between glow relay and battery
>> Repair harness or connectors.
MBIB1220E
Voltage: Battery voltage
PBIB1413E
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EC-300
GLOW CONTROL SYSTEM
9.CHECK GLOW RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 37 and glow relay terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E8, F2
lHarness for open or short between glow relay and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 .CHECK HARNESS CONTINUITY BETWEEN GLOW RELAY AND GLOW PLUG FOR OPEN AND
SHORT
1. Disconnect glow plug harness connector.
2. Check harness continuity between glow relay terminal 5 and glow plug harness connector.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E7, F8
lHarness for open or short between glow relay and glow plug
>> Repair open circuit or short to ground or short to power in harness or connectors.
13.CHECK GLOW RELAY
Refer toEC-301, "
Component Inspection".
OK or NG
OK >> GO TO 14.
NG >> Replace glow relay.
14.CHECK GLOW PLUG
Refer toEC-301, "
Component Inspection".
OK or NG
OK >> GO TO 15.
NG >> Replace glow plug.Continuity should exist.
Continuity should exist.