Mazda CX-7 2007 Workshop Manual page 171

DTC P0340 Camshaft position (CMP) sensor circuit malfunction
CMP SENSOR
CMP SENSOR
WIRING HARNESS-SIDE CONNECTOR
C
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?
3 VERIFY CMP SENSOR VOLTAGE
• Disconnect the CMP sensor connector.
• Connect a voltmeter between CMP sensor
connector terminals A and C (sensor-side).
• Inspect the voltage in AC range while cranking
the engine.
• Is there any voltage?
4 INSPECT CMP SENSOR CONNECTOR FOR
POOR CONNECTION
• Verify that the CMP sensor connector is
connected securely.
• Is the connector normal?
ON-BOARD DIAGNOSTIC [L3 WITH TC]
MAIN RELAY
4
3 6
A
7 9
10
4
3 5
C
7 9
4
5
B
2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M
2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z 2V 2R 2N
B A
2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O
2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P
INSPECTION
PCM
8
6
2S
8
9
2P
PCM
WIRING HARNESS SIDE CONNECTOR
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.
Yes Go to the next step.
No Go to step 10.
Yes Go to the next step.
No Reconnect the connector, then go to Step 15.
2E 2A
2I
2J 2F 2B
2K 2G 2C
2L 2H 2D
ACTION
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