Diagnostic Test

VERIFY THE DTC IS ACTIVE
NOTE:
Make sure the battery voltage is between 10.0 and 16.0 volts.
1. Ignition on, engine not running.
2. With the scan tool, record and erase DTCs.
3. Cycle the ignition from off to on.
4. With the scan tool, read DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Go To 8
CHECK THE (A196) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT
1. Turn the ignition off.
2. Disconnect the PTU harness connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the (A196) Fused B(+) circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 3
  No
  - Repair the (A196) Fused B(+) circuit for an open or short.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (F946) FUSED IGNITION (RUN-START) CONTROL OUTPUT CIRCUIT FOR AN OPEN OR SHORT
1. Using a 12-volt test light connected to ground, check the (F946) Fused Ignition (Run-Start) Control Output circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 4
  No
  - Repair the (F946) Fused Ignition (Run-Start) Control Output circuit for an open or short.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (Z924) GROUND CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Using a 12-volt test light connected to 12-volts, check the (Z924) Ground circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 5
  No
  - Repair the (Z924) Ground circuit for an open.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (D469) PRIVATE CAN (+) CIRCUIT FOR AN OPEN
1. Disconnect the DTCM C1 harness connector.
2. Measure the resistance of the (D469) PRIVATE CAN C (+) circuit between the PTU harness connector and the DTCM C1 harness connector.
  Is the resistances below 5.0 Ohms?
  
  Yes
  - Go To 6
  No
  - Repair the (D469) PRIVATE CAN C (+) circuit for an open.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (D468) PRIVATE CAN C(-) CIRCUIT FOR AN OPEN
1. Measure the resistance of the (D468) PRIVATE CAN C (-) circuit between the PTU harness connector and the DTCM C1 harness connector.
  Are the resistances below 5.0 Ohms?
  
  Yes
  - Go To 7
  No
  - Repair the (D468) PRIVATE CAN C (-) circuit for an open.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
DRIVE TRAIN CONTROL MODULE (DTCM)
1. Replace the Drive Train Control Module (DTCM) in accordance with the Service Information. Refer to MODULE, DRIVETRAIN CONTROL, REMOVAL .Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
2. Ignition on, engine not running.
3. With the scan tool, record and erase DTCs.
4. Cycle the ignition from off to on.
5. With the scan tool, read DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Rear Driveline Module (RDM) in accordance with the Service Information.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test complete.
INTERMITTENT WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
3. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors.
4. Look for the data to change or for the DTC to reset during the wiggle test.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the TRANSFER CASE VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.