Dtc P0111 - Mazda 6 2002 Workshop Manual

STEP
6 VERIFY MAP SENSOR SIGNAL CIRCUIT FOR
SHORT TO CONSTANT VOLTAGE CIRCUIT
• Inspect for continuity between MAP sensor
terminal D and C (harness-side).
• Is there any continuity?
7 VERIFY MAP SENSOR SIGNAL CIRCUIT FOR
OPEN CIRCUIT
• Inspect continuity between MAP sensor
terminal D (harness-side) and PCM terminal 1J
(harness-side).
• Is there any continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0108
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Turn ignition key to ON (Engine OFF).
• Clear DTC from memory using WDS or
equivalent.
• Perform KOEO/KOER self-test.
(See F–66 KOEO/KOER
• Is same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F–66 AFTER REPAIR
• Is there any DTC present?
End Of Sie

DTC P0111

DTC P0111 IAT circuit performance problem
• If intake air temperature is higher than engine coolant temperature by 40 ° ° ° ° C {104 ° ° ° ° F} with ignition key on,
the PCM determines that there is a IAT sensor performance problem.
Diagnostic support note
• This is a continuous monitor (CCM).
DETECTION
• MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles or in one
CONDITION
drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.
• IAT sensor malfunction
POSSIBLE
• Poor connection at MAF/IAT sensor or PCM connector
CAUSE
• PCM malfunction
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has FREEZE FRAME DATA been recorded?
2 VERIFY RELATED SERVICE INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any related Service Information available?
3 INSPECT POOR CONNECTION OF MAF/IAT
SENSOR CONNECTOR
• Turn ignition key to OFF.
• Disconnect MAF/IAT sensor connector.
• Inspect for poor connection (damaged, pulled-
out pins, corrosion, etc.).
• Are there any malfunctions?
4 INSPECT IAT SENSOR
• Inspect IAT sensor.
(See F–50 INTAKE AIR TEMPERATURE (IAT)
SENSOR INSPECTION)
• Is IAT sensor okay?
F–90
ON-BOARD DIAGNOSTIC
INSPECTION
SELF-TEST.)
PROCEDURE.)
INSPECTION
Yes Repair or replace suspected harness, then go to Step 8.
No Go to net step.
Yes Go to net step.
No Repair or replace suspected harness, then go to net step.
Yes Replace PCM, then go to net step.
(See F–43 PCM REMOVAL/INSTALLATION.)
No Go to net step.
Yes Go to applicable DTC troubleshooting.
(See F–67 DTC TABLE.)
No Troubleshooting completed.
Yes Go to net step.
No Record FREEZE FRAME DATA on repair order, then go to
net step.
Yes Perform repair or diagnosis according to available Service
Information.
• If vehicle is not repaired, go to net step.
No Go to net step.
Yes Repair or replace terminal, then go to Step 6.
No Go to net step.
Yes Replace MAF/IAT sensor, then go to Step 6.
No Go to net step.
ACTION
A6E397001084W13
ACTION