Mazda CX-7 2007 Workshop Manual page 67

DTC P0016[L3 WITH TC]
DTC P0016 CKP-CMP correlation
• The PCM monitors the input pulses from the CKP sensor and CMP sensor. If the input pulse pick-up timing
do not match each other, the PCM determines that the camshaft position does not coincide with the
crankshaft position.
Diagnostic support note
• This is a continuous monitor (CCM).
DETECTION
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
CONDITION
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available 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.
• Poor connection of connector
• CMP sensor malfunction
• CKP sensor malfunction
• Damaged or scratched CMP sensor pulse wheel
POSSIBLE
• Damaged or scratched CKP sensor pulse wheel
CAUSE
• Foreign material on CMP sensor
• Foreign material on CKP sensor
• Improper valve timing
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Verify related Service Bulletins and/or on-line
repair information availability.
• Is any related repair information available?
3 INSPECT CMP SENSOR CONNECTOR FOR
POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the CMP sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT CMP SENSOR FOR FOREIGN
MATERIAL
• Remove the CMP sensor.
• Inspect the CMP sensor for foreign material.
• Is there any foreign material on the CMP
sensor?
5 INSPECT CMP SENSOR PULSE WHEEL
• Visually inspect the CMP sensor pulse wheel.
• Is there any damage or scratching to the CMP
sensor pulse wheel?
6 INSPECT CMP SENSOR
• Inspect the CMP sensor.
(See01-40-45 CAMSHAFT POSITION (CMP)
SENSOR INSPECTION[L3 WITH TC].)
• Is the CMP sensor normal?
7 INSPECT CKP SENSOR CONNECTOR FOR
POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the CKP sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
ON-BOARD DIAGNOSTIC [L3 WITH TC]
INSPECTION
Yes Go to the next step.
No Record the 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 Repair or replace the terminal, then go to Step 13.
No Go to the next step.
Yes Remove foreign material from the CMP sensor, then go to
Step 13.
No Go to the next step.
Yes Replace the camshaft, then go to Step 13.
(See01-10-20 CYLINDER HEAD GASKET
REPLACEMENT[L3 WITH TC].)
No Go to the next step.
Yes Go to the next step.
No Replace the CMP, then go to Step 13.
Yes Repair or replace the terminal, then go to Step 13.
No Go to the next step.
id010239801800
ACTION
01-02–25
01-02