Mazda CX-7 2007 Workshop Manual page 88

DTC P0098[L3 WITH TC]
DTC P0098 Boost air temperature sensor circuit high
• If the PCM detects that the boost air temperature sensor voltage is 4.96 V or more, the PCM determines
that the boost air temperature sensor circuit voltage is high.
Diagnostic support note
DETECTION
• This is a continuous monitor (CCM).
CONDITION
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
• Boost air temperature sensor malfunction
• Open circuit between MAP/boost air temperature sensor terminal A and PCM terminal 2AV
• Open circuit between MAP/boost air temperature sensor terminal B and PCM terminal 2N
POSSIBLE
• Short to the power circuit between MAP/boost air temperature sensor terminal A and PCM terminal 2AV
CAUSE
• Short to the power circuit between MAP/boost air temperature sensor terminal B and PCM terminal 2N
• Connector or terminal malfunction
• PCM malfunction
BOOST AIR TEMPERATURE SENSOR
5
MAP/BOOST AIR TEMPERATURE SENSOR
WIRING HARNESS-SIDE CONNECTOR
D
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
01-02–46
ON-BOARD DIAGNOSTIC [L3 WITH TC]
3
B
3
A
C B A
INSPECTION
PCM
6
4 7
2N
6
4 7
2AV
PCM
WIRING HARNESS-SIDE CONNECTOR
2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P
Yes Go to the next step.
No Record FREEZE FRAME DATA on the repair order, then go
to the next step.
Yes Perform the repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No Go to the next step.
id010239803000
2I 2E 2A
2J 2F 2B
2K 2G 2C
2L 2H 2D
ACTION