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*ENGINE CRANKS BUT WILL NOT START —
TEST
3
Using a temperature probe, check the vehicle temperature near the ECT Sensor.
Turn the ignition on.
With the DRBIII in Sensors, read the ECT Sensor temperature.
Compare the temperature probe reading with the DRBIII reading.
Are the two readings within 10°C of each other?
Yes → Go To 4
→ Repair as necessary.
No
4
NOTE: Prior to performing this test, be sure to check the Glow Plug Relay
operation. Refer to CHECKING GLOW PLUG OPERATION for the related
symptom(s).
Refer to the Service Information and check the Glow Plugs for proper operation.
Are the Glow Plugs operating properly?
Yes → Go To 5
→ Repair as necessary.
No
5
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect all 5 Fuel Injector harness connectors.
Measure the resistance between Ground and each Fuel Injector Driver circuit at it's
respective Fuel Injector harness connector.
Is the resistance below 1000 ohms for any of the measurements?
Yes → Repair the Fuel Injector Driver circuit(s) for a short to ground.
→ Go To 6
No
6
Inspect the fuel system lines for restrictions, leaks or other problems.
Is there any evidence of problems?
Yes → Repair as necessary.
→ Go To 7
No
7
Turn the ignition off.
Using the DRBIII lab scope, backprobe the CMP Sensor Signal circuit at the ECM
harness connector.
Start the engine, if the engine will not start, crank the engine for several seconds
while monitoring the DRBIII .
NOTE: Refer to Charts and Graphs to view a correct CMP Sensor signal.
Does the DRBIII display a steady clean CMP Signal pattern?
Yes → Go To 8
→ Perform Test for DTC P0340-Camshaft Position Sensor Circuit
No
ACTION
Perform NO START VERIFICATION - VER-1.
Perform NO START VERIFICATION - VER-1.
Perform NO START VERIFICATION - VER-1.
Perform NO START VERIFICATION - VER-1.
Static Plausibility.
Perform NO START VERIFICATION - VER-1.
DRIVEABILITY - DIESEL
Continued
235
APPLICABILITY
All
All
All
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All
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