Mazda CX-9 Grand Touring 2009 Manual page 1056

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Turn the ignition switch to the ON
position (Engine running).
With the engine running, determine if
the generator is still noisy.
Does the noise remain constant when
the terminal B is disconnected?
INSPECT CMP SENSOR (LH)
CONNECTOR FOR POOR
CONNECTION
Turn the ignition switch off.
5
Disconnect the CMP sensor (LH)
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Are there any malfunction?
INSPECT CMP SENSOR SIGANAL
CIRCUIT FOR SHORT TO POWER
SUPPLY
Turn the ignition switch to the ON
6
position (Engine off).
Measure voltage between CMP sensor
(LH) terminal A (wiring harness-side)
and body ground.
Is the voltage B+?
INSPECT CMP SENSOR (LH) SIGNAL
CIRCUIT FOR SHORT TO GROUND
Turn the ignition switch off.
7
Check continuity between CMP sensor
(LH) terminal A and body ground.
Is there continuity?
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
Disconnect PCM connector.
8
Check for poor connection (such as
damaged, pulled-out pins, and
corrosion).
Are there any malfunction?
INSPECT CMP SENSOR (LH) CIRCUIT
2008 Mazda CX-9 Grand Touring
Repair or replace suspected part, then go to Step
Yes
11.
No
Repair or replace suspected part, then go to Step
Yes
11.
No
Repair or replace suspected part, then go to Step
Yes
11.
No
Repair or replace suspected part, then go to Step
Yes
11.
No
Go to the next step.
Go to the next step.
Go to the next step.
Go to the next step.