Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Possible Causes
(A209) FUSED B(+) CIRCUITS OPEN OR SHORTED
(Z906) GROUND CIRCUITS OPEN
(D52) CAN C BUS (+) CIRCUIT OPEN
(D51) CAN C BUS (-) CIRCUIT OPEN
TRANSMISSION CONTROL MODULE (TCM)

TEST FOR INTERMITTENT CONDITION
NOTE:
Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.
1. Turn the ignition on.
  NOTE:
  Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
2. Using the scan tool, select ECU View.
  NOTE:
  A red "X" will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.
  
  NOTE:
  Check the TIPM for any active CAN C hardware DTCs, perform DTC before proceeding.
  
  Does the scan tool display a red "X" next to the module?
  
  Yes
  - Go To 2.
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
(A209) FUSED B(+) CIRCUIT OPEN OR SHORTED

Fig 1: Checking Fused B(+) For Circuit Open Or Shorted
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TCM C2 harness connector.
3. Using a 12-volt test light connected to ground, check the (A209) Fused B(+) circuit.
  Does the test light illuminate brightly for each circuit?
  
  Yes
  - Go To 3.
  No
  - Repair the open or short to ground in the (A209) Fused B(+) circuit.
  - Perform the AS68RC TRANSMISSION VERIFICATION TEST. Refer to Standard Procedure .
(Z906) GROUND CIRCUITS OPEN

Fig 2: Checking Ground Circuits For Open
Courtesy of CHRYSLER LLC
1. Using a 12-volt test light connected to 12-volts, check the (Z906) Ground circuits.
  Does the test light illuminate brightly for each circuit?
  
  Yes
  - Go To 4.
  No
  - Repair the open in the (Z906) Ground circuit.
  - Perform the AS68RC TRANSMISSION VERIFICATION TEST. Refer to Standard Procedure .
(D52) CAN C BUS (+) CIRCUIT OPEN

Fig 3: Measuring Resistance CAN C Bus (+) Circuit Between TIPM Harness Connector And TCM Harness Connector
Courtesy of CHRYSLER LLC
1. Disconnect the TIPM C7 harness connector.
2. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the TCM C2 harness connector.
  Is resistance below 5.0 Ohms?
  
  Yes
  - Go To 5.
  No
  - Repair the open in the (D52) CAN C Bus (+) circuit.
  - Perform the AS68RC TRANSMISSION VERIFICATION TEST. Refer to Standard Procedure .
(D51) CAN C BUS (-) CIRCUIT OPEN

Fig 4: Measuring Resistance CAN C Bus (-) Circuit Between TIPM Harness Connector And TCM Harness Connector
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the TCM C2 harness connector.
  Is resistance below 5.0 Ohms?
  
  Yes
  - Replace the TCM in accordance with the Service Information.
  - Perform the AS68RC TRANSMISSION VERIFICATION TEST. Refer to Standard Procedure .
  No
  - Repair the open in the (D51) CAN C Bus (-) circuit.
  - Perform the AS68RC TRANSMISSION VERIFICATION TEST. Refer to Standard Procedure .