Engine Cranks But Does Not Start

Engine Cranks But Does Not Start:

Engine Cranks But Does Not Start (Part 1 Of 3):

Engine Cranks But Does Not Start (Part 2 Of 3):

Engine Cranks But Does Not Start (Part 3 Of 3):

CIRCUIT DESCRIPTION
The EVO/PASSLOCK module will read an analog voltage from the PASSLOCK sensor. Based on an internal reference the EVO/PASSLOCK module will determine if the measured voltage is open, shorted to ground, a valid code, or a tamper code. There are 10 possible valid code combinations. The EVO/PASSLOCK module will only accept the last learned valid code.

DIAGNOSTIC AIDS
^ Prior to cranking, if a problem developed to prevent the PASSLOCK sensor signal from reporting to the EVO/PASSLOCK module, the vehicle will not start and DTC B2958 will not be set. In this case, the scan tool will still read "PASSLOCK Code Open" after cranking.
^ When replacing the PASSLOCK sensor, all the sensor components; the lock, the sensor, the filter, and the harness, are included as a replacement part and must be replaced.
^ Use the scan tool in order to test the PASSLOCK data voltage and the PASSLOCK code.
^ Perform a visual inspection of the wiring and the connectors.
^ Inspect the PASSLOCK sensor harness for an intermittent or poor connections (including the in-line connector). Refer to Intermittents and Poor Connections. Intermittents and Poor Connections

TEST DESCRIPTION
The numbers below refer to the numbers on the diagnostic table.
2. This step determines if the PASSLOCK data terminal has an open condition or a short to battery.
3. This step determines if the PASSLOCK sensor power is available at the EVO/PASSLOCK module. If CKT 812 is shorted to ground, DTC B2947 will set. Diagnosing and repairing DTC B2947 may eliminate the engine cranking but not starting condition.
4. This step tests the PASSLOCK sensor ground.
5. This step tests for an open in any of the PASSLOCK sensor lines.
8. This step tests for a short to battery on the PASSLOCK sensor signal line.
10. This step isolates the problem between the PASSLOCK sensor and CKT 1836.