Isuzu 2008MY N Series, Руководство по ремонту

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1A-156 Engine Control System (4HK1)
DTC P0336 (Flash Code 15)
Circuit Description
The crankshaft position (CKP) sensor is located on the
flywheel housing. The sensor rotor is fixed on the
flywheel. There are 56 notches spaced 6
°
apart and a
30
°
section that is open span. This open span portion
allows for the detection of top dead center (TDC). The
ECM monitors both CKP sensor and camshaft position
(CMP) sensor signal pulses to ensure they correlate
with each other. If the ECM receives extra or missing
CKP sensor signal pulse, this DTC will set.
Condition for Running the DTC
• DTCs P0016, P0335, P0340 and P0341 are not
set.
• The ignition switch is ON.
• The CKP sensor signal pulse is detected.
Condition for Setting the DTC
• The ECM detects extra or missing CKP sensor
signal pulses during engine rotations.
Action Taken When the DTC Sets
• The ECM illuminates the MIL when the diagnostic
runs and fails. Refer to DTC Type Definitions for
Action Taken When the DTC Sets - Type A.
Condition for Clearing the DTC
• Refer to DTC Type Definitions for Condition for
Clearing the MIL/ DTC - Type A.
Diagnostic Aids
• If an intermittent condition is suspected, refer to
Intermittent Conditions in this section.
• Electromagnetic interference in the CKP sensor
circuits may set this DTC.
• An intermittent CKP sensor signal pulse may set
this DTC.
• Ensure the sensor is tight and the sensor rotor
teeth are not damaged.
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC P0336
Step Action Value(s) Yes No
1
Did you perform the Diagnostic System Check
- Engine Controls?
—
Go to Step 2
Go to Diagnostic
System Check -
Engine Controls
2
1. Install a scan tool.
2. Turn OFF the ignition for 30 seconds.
3. Start the engine (Note a slight start delay may
be noticed).
4. Monitor the DTC Information with a scan tool.
Is DTC P0335, P0340, P0341 or P0697 also
set?
—
Go to Applicable
DTC Go to Step 3
3
1. Inspect all of the circuits going to the
crankshaft position (CKP) sensor for the
following conditions:
• Routed too closely to fuel injection wiring
or components
• Routed too closely to after-market add-
on electrical equipment
• Routed too closely to solenoids and
relays
2. If you find incorrect routing, correct the
harness routing.
Did you find and correct the condition?
—
Go to Step 7 Go to Step 4
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