Diagnostic Test

WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY DTC B2336-HORN CONTROL CIRCUIT LOW IS ACTIVE
1. With the scan tool, erase TIPM DTCs.
2. Operate the Horn Switch several times.
3. With the scan tool, read TIPM DTCs.
  Does the scan tool display active DTC B2336-HORN CONTROL CIRCUIT LOW?
  
  Yes
  - Go to step 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. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(X21)/(X22) HORN CONTROL OUTPUT CIRCUIT SHORTED TO GROUND

Fig 1: Checking Horn Control Output Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the horn connector(s).
3. Disconnect the TIPM C11 harness connector.
4. Measure the resistance between ground and the Horn Control Output circuit(s) at the horn connector(s).
  Is the resistance below 100 Ohms?
  
  Yes
  - Repair the short to ground in the (X21)/(X22) Horn Control Output circuit.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 3
HORN

Fig 2: Checking Horn Control Output Circuit Using 12-Volt Test Light
Courtesy of CHRYSLER LLC
1. Connect the TIPM C11 harness connector.
2. Turn the ignition on, engine not running.
3. With the scan tool under the TIPM Actuators, actuate the Horn.
4. Using a 12-volt test light connected to ground, check the Horn Control Output circuit at the Horn connector(s).
  Does the test light illuminate brightly and flash on and off?
  
  Yes
  - Replace the Horn(s) as necessary in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 4
TOTALLY INTEGRATED POWER MODULE (TIPM)
NOTE: Before continuing, check the TIPM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
1. Using the schematics as a guide, inspect the wire harness and connectors.
2. Pay particular attention to all Power and Ground circuits.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Totally Integrated Power Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .