Diagnostic Test

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

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Turn the Right Turn Signal on.
4. With the scan tool, read DTCs.
  Does the scan tool display DTC: B1648-REAR RIGHT TURN LAMP CONTROL CIRCUIT HIGH?
  
  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.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (L62) RIGHT REAR TURN LAMP DRIVER CIRCUIT FOR A SHORT TO VOLTAGE IN THE HARNESS

Fig 1: Checking Right Rear Turn Lamp Driver Circuit For A Short To Voltage In The Harness
Courtesy of CHRYSLER LLC
1. Turn the Right Turn Signal off.
2. Turn the ignition off.
3. Disconnect the Right Tail Lamp Assembly C1 harness connector.
4. Disconnect the TIPM C7 harness connector.
5. Turn the ignition on.
6. Measure the voltage between ground and the (L62) Right Rear Turn Lamp Driver circuit.
  Is there any voltage present?
  
  Yes
  - Repair the short to voltage in the (L62) Right Rear Turn Lamp Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3.
CHECK THE TIPM FOR CORRECT OPERATION

Fig 2: Checking TIPM For Correct Operation Right Rear Turn Signal
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Reconnect the TIPM C7 harness connector.
3. Connect a 12-volt test light between the (L62) Right Rear Turn Lamp Driver circuit and the (Z914) Ground circuit at the Right Tail Lamp Assembly C1 harness connector.
4. Turn the ignition on.
5. Turn the Right Turn Signal on.
  Does the test light blink on and off?
  
  Yes
  - Replace the Right Rear Turn Signal Bulb in accordance with the Service Information. Refer to LAMP, Tail Stop Turn , Removal .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4.
CHECK THE (L62) RIGHT REAR TURN LAMP DRIVER CIRCUIT FOR AN OPEN IN THE HARNESS

Fig 3: Checking Right Rear Turn Lamp Driver Circuit For An Open In The Harness
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C7 harness connector.
3. Measure the resistance of the (L62) Right Rear Turn Lamp Driver circuit between the Right Tail Lamp Assembly C1 harness connector and the TIPM C7 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 5.
  No
  - Repair the open in the (L62) Right Rear Turn Lamp Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (Z914) GROUND CIRCUIT FOR AN OPEN IN THE HARNESS

Fig 4: Checking Ground Circuit For An Open
Courtesy of CHRYSLER LLC
1. Using a 12-volt test light connected to 12-volts, check the (Z914) Ground circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Refer to MODULE, Totally Integrated Power (TIPM) , Removal .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the open in the (Z914) Ground circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .