Cabin Compartment Node (Ccn) - Electrical Diagnostics: Diagnosis RAM Cab & Chassis 3500 HD

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

Scheme 385

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

DIAGNOSTIC TEST

1. INSPECT SWITCH BANK FOR DAMAGE NOTE: Diagnose and repair all LIN Bus related DTCs before performing this test procedure. Turn the ignition off. Inspect the Switch Bank for damage. Is the Switch Bank damaged? Yes Replace the Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Go To 2 .
2. INSPECT FOR OBJECT OR SUBSTANCE CAUSING LEFT HEATED SEAT SWITCH TO STAY OR STICK IN A PUSHED POSITION Inspect the Left Heated Seat switch for anything that would cause it to stay or stick in a pushed position. Is anything present that would cause the Left Heated Seat switch to stay or stick in a pushed position? Yes Repair as necessary. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Go To 3 .
3. TEST FOR INTERMITTENT CONDITION Turn the ignition on. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs). Press and release the Left Heated Seat switch several times and then wait 20 seconds. Using a scan tool, read DTCs. Does the scan tool display DTC B10BB-LEFT HEATED SEAT SWITCH INPUT CIRCUIT STUCK? Yes Replace the Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No The conditions that caused this code to set are not present at this time. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) .

1. INSPECT SWITCH BANK FOR DAMAGE NOTE: Diagnose and repair all LIN Bus related DTCs before performing this test procedure. Turn the ignition off. Inspect the Switch Bank for damage. Is the Switch Bank damaged? Yes Replace the Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Go To 2 .
2. INSPECT FOR OBJECT OR SUBSTANCE CAUSING RIGHT HEATED SEAT SWITCH TO STAY OR STICK IN A PUSHED POSITION Inspect the Right Heated Seat switch for anything that would cause it to stay or stick in a pushed position. Is anything present that would cause the Right Heated Seat switch to stay or stick in a pushed position? Yes Repair as necessary. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Go To 3 .
3. TEST FOR INTERMITTENT CONDITION Turn the ignition on. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs). Press and release the Right Heated Seat switch several times and then wait 20 seconds. Using a scan tool, read DTCs. Does the scan tool display DTC B10BC-RIGHT HEATED SEAT SWITCH INPUT CIRCUIT STUCK? Yes Replace the Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No The conditions that caused this code to set are not present at this time. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) .

Scheme 386

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Replace the Compass Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Test complete.

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Replace the Upper Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Test complete.

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Check for a stuck Left Steering Wheel Control Switch. NOTE: Visually and physically inspect the wiring harness between the Left Steering Wheel Control Switch harness connector and the Right Steering Wheel Control Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test. Replace the Left Steering Wheel Switch in accordance with the Service Information. Refer to «SWITCH, EVIC CONTROL, REMOVAL»(ref-476532-S11452745232012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Check for a stuck Left Steering Wheel Control Switch. NOTE: Visually and physically inspect the wiring harness between the Left Steering Wheel Control Switch harness connector and the Right Steering Wheel Control Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test. Replace the Left Steering Wheel Switch in accordance with the Service Information. Refer to «SWITCH, EVIC CONTROL, REMOVAL»(ref-476532-S11452745232012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Replace the Cluster in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Test complete.

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. Press each Remote Radio Switch twice. With the scan tool, read DTCs Does the scan tool display this DTC as active? Yes WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Visually and physically inspect the wiring harness between the Remote Radio Switch harness connectors and the Right Steering Wheel Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test. Replace the Right Steering Wheel Control Switch (Speed Control Switch) in accordance with the Service Information. Refer to «SWITCH, SPEED CONTROL, REMOVAL»(ref-476530-S25421423672012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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»(ref-476553-S41648749512012060400000) .

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. Press each Remote Radio Switch twice. With the scan tool, read DTCs Does the scan tool display this DTC as active? Yes WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Check for a stuck Remote Radio Switch. Repair as necessary. NOTE: Visually and physically inspect the wiring harness between the Remote Radio Switch harness connectors and the Right Steering Wheel Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test. Replace the Right Steering Wheel Control Switch (Speed Control Switch) in accordance with the Service Information. Refer to «SWITCH, SPEED CONTROL, REMOVAL»(ref-476530-S25421423672012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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»(ref-476553-S41648749512012060400000) .

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Check for a stuck Left Steering Wheel Control Switch. NOTE: Visually and physically inspect the wiring harness between the Left Steering Wheel Control Switch harness connector and the Right Steering Wheel Control Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test. Replace the Left Steering Wheel Switch in accordance with the Service Information. Refer to «SWITCH, EVIC CONTROL, REMOVAL»(ref-476532-S11452745232012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DTC NOTE: Before proceeding with this diagnostic procedure, verify the Left and Right Steering Wheel Switch and Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Check for a stuck Left Steering Wheel Control Switch. NOTE: Visually and physically inspect the wiring harness between the Left Steering Wheel Control Switch harness connector and the Right Steering Wheel Control Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test. Replace the Left Steering Wheel Switch in accordance with the Service Information. Refer to «SWITCH, EVIC CONTROL, REMOVAL»(ref-476532-S11452745232012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

Scheme 387

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. Turn the Headlamps on. Operate the Fog Lamp Switch several times. Turn the ignition on and wait 30 seconds. Using the scan tool, read DTCs. Does the scan tool display: B168F-FRONT FOG LAMP SWITCH CIRCUIT STUCK? Yes Replace the Headlamp Switch in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

Scheme 388

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

1. CHECK FOR AN ACTIVE DTC NOTE: Before proceeding with this diagnostic procedure, verify the Multifunction Switch and Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set. Turn the ignition on. Actuate the left and right turn signals with the Multifunction Switch. With the scan tool, read DTCs. Does the scan tool display this DTC as Active? Yes Replace the Multifunction Switch in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) NOTE: Before proceeding with this diagnostic procedure, verify the Multifunction Switch and Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set. Turn the ignition on. Turn the Wipers on and off three times. Using the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Replace the Multifunction Switch in accordance with the Service Information. Refer to «SWITCH, MULTIFUNCTION, REMOVAL»(ref-476510-S30948088392012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) NOTE: Before proceeding with this diagnostic procedure, verify the Multifunction Switch and Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set. Turn the ignition on. Actuate the Washer Switch. Using the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Replace the Multifunction Switch in accordance with the Service Information. Refer to «SWITCH, MULTIFUNCTION, REMOVAL»(ref-476510-S30948088392012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Visually and physically inspect the wiring harness between the Horn Switch harness connector and the Right Steering Wheel Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test. Replace the Right Steering Wheel Switch (Speed Control Switch) in accordance with the Service Information. Refer to «SWITCH, SPEED CONTROL, REMOVAL»(ref-476530-S25421423672012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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»(ref-476553-S41648749512012060400000) .

1. CHECK FOR AN ACTIVE DTC NOTE: Before proceeding with this diagnostic procedure, verify the Multifunction Switch and Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set. Turn the ignition on. Actuate the High Beams with the Multifunction Switch. With the scan tool, read DTCs. Does the scan tool display this DTC as Active? Yes Replace the Multifunction Switch in accordance with the Service Information. Refer to «SWITCH, MULTIFUNCTION, REMOVAL»(ref-476510-S30948088392012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DTC NOTE: Before proceeding with this diagnostic procedure, verify the Multifunction Switch and Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set. Turn the ignition on. Actuate the Mist function with the Multifunction Switch. With the scan tool, read DTCs. Does the scan tool display this DTC as Active? Yes Replace the Multifunction Switch in accordance with the Service Information. Refer to «SWITCH, MULTIFUNCTION, REMOVAL»(ref-476510-S30948088392012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DTC NOTE: Before proceeding with this diagnostic procedure, verify the Multifunction Switch and Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set. Turn the ignition on. Actuate the Optical Horn with the Multifunction Switch. With the scan tool, read DTCs. Does the scan tool display this DTC as Active? Yes Replace the Multifunction Switch in accordance with the Service Information. Refer to «SWITCH, MULTIFUNCTION, REMOVAL»(ref-476510-S30948088392012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. Press the Tire Pressure Load (Light Load) Switch several times. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Replace the Upper Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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.

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Replace the Upper Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Test complete.

Scheme 389

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. Actuate the Overdrive / Tow Switch. With the scan tool, read DTCs. Does the scan tool display this DTC as Active? Yes Replace the Upper Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Test complete.

Scheme 390

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

1. INSPECT SWITCH BANK FOR DAMAGE NOTE: Diagnose and repair all LIN Bus related DTCs before performing this test procedure. Turn the ignition off. Inspect the Switch Bank for damage. Is the Switch Bank damaged? Yes Replace the Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Go To 2 .
2. INSPECT FOR OBJECT OR SUBSTANCE CAUSING INVERTER SWITCH TO STAY OR STICK IN A PUSHED POSITION Inspect the Inverter switch for anything that would cause it to stay or stick in a pushed position. Is anything present that would cause the Inverter switch to stay or stick in a pushed position? Yes Repair as necessary. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Go To 3 .
3. TEST FOR INTERMITTENT CONDITION Turn the ignition on. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs). Press and release the Inverter switch several times and then wait 20 seconds. Using a scan tool, read DTCs. Does the scan tool display DTC P1103-DC TO AC CONVERTER SWITCH STUCK? Yes Replace the Switch Bank in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . 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»(ref-476553-S41648749512012060400000) .

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. Using the scan tool, read active DTCs. Is this DTC active? Yes Refer to «U0010-CAN INTERIOR BUS»(ref-476553-S34328582572012060400000) and perform the diagnostic procedure. No Refer to «STORED LOST COMMUNICATION DTCS»(ref-476525-S35361024732012060400000) and perform the diagnostic procedure.

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read active Cluster DTCs. Is this DTC active? Yes Refer to «U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM)»(ref-476553-S23688163152012060400000) and perform the diagnostic procedure. No Refer to «STORED LOST COMMUNICATION DTCS»(ref-476525-S35361024732012060400000) and perform the diagnostic procedure.

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read active Cluster DTCs. Is this DTC active? Yes Refer to «U0159-LOST COMMUNICATION WITH PARK ASSIST MODULE (PTS)»(ref-476553-S19080113682012060400000) and perform the diagnostic procedure. No Refer to «STORED LOST COMMUNICATION DTCS»(ref-476525-S35361024732012060400000) and perform the diagnostic procedure.

Scheme 391

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read active Cluster DTCs. Is this DTC active? Yes Refer to «U0164-LOST COMMUNICATION WITH HVAC CONTROL MODULE»(ref-476553-S06491160922012060400000) and perform the diagnostic procedure. No Refer to «STORED LOST COMMUNICATION DTCS»(ref-476525-S35361024732012060400000) and perform the diagnostic procedure.

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read active Cluster DTCs. Is this DTC active? Yes Refer to «U0184-LOST COMMUNICATION WITH RADIO»(ref-476553-S35084218602012060400000) and perform the diagnostic procedure. No Refer to «STORED LOST COMMUNICATION DTCS»(ref-476525-S35361024732012060400000) and perform the diagnostic procedure.

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read active Cluster DTCs. Is this DTC active? Yes Refer to «U0197-LOST COMMUNICATION WITH HANDS FREE PHONE MODULE (HFM)»(ref-476553-S09588250202012060400000) and perform the diagnostic procedure. No Refer to «STORED LOST COMMUNICATION DTCS»(ref-476525-S35361024732012060400000) and perform the diagnostic procedure.

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read active Cluster DTCs. Is this DTC active? Yes Refer to «U0208-LOST COMMUNICATION WITH HEATED SEAT CONTROL MODULE»(ref-476553-S25963150382012060400000) and perform the diagnostic procedure. No Refer to «STORED LOST COMMUNICATION DTCS»(ref-476525-S35361024732012060400000) and perform the diagnostic procedure.

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read active Cluster DTCs. Is this DTC active? Yes Refer to «U0209-LOST COMMUNICATION WITH MEMORY SEAT CONTROL MODULE (MSMD)»(ref-476553-S36188331852012060400000) and perform the diagnostic procedure. No Refer to «STORED LOST COMMUNICATION DTCS»(ref-476525-S35361024732012060400000) and perform the diagnostic procedure.

1. CHECK FOR AN ACTIVE DTC NOTE: Before proceeding with this diagnostic procedure, verify the Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display this DTC as active? 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.
2. (A909) FUSED B (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Right Steering Wheel Switch harness connector. Turn the ignition on. Measure the voltage of the (A909) Fused B (+) circuit. Is the voltage above 10.0 volts? Yes Go To 3 . No Using the Wiring Information as a guide, repair the (A909) Fused B (+) circuit for an open. Inspect the related fuse. If the fuse is open, check the circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) .
3. (Z911) GROUND CIRCUIT FOR AN OPEN Turn the ignition off. Measure the resistance between ground and the (Z911) Ground circuit at the Right Steering Wheel Switch harness connector. Is the resistance below 10K Ohms? Yes Go To 4 . No Using the Wiring Information as a guide, repair the (Z911) Ground circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) .
4. RIGHT STEERING WHEEL SWITCH Turn the ignition on. Measure the voltage of the (D506) LIN BUS circuit at the Right Steering Wheel Switch harness connector. Is the voltage above 5 volts? Yes Replace the Right Steering Wheel Switch in accordance with the Service Information. Refer to «SWITCH, SPEED CONTROL, REMOVAL»(ref-476530-S25421423672012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Go To 5 .
5. (D506) LIN BUS CIRCUIT FOR AN OPEN BETWEEN THE CLOCKSPRING AND RIGHT STEERING WHEEL SWITCH Turn the ignition off. Disconnect the Clockspring C8 harness connector. Measure the resistance of the (D506) LIN BUS circuit between the Clockspring C8 and Right Steering Wheel Switch harness connectors. Is the resistance below 10K Ohms? Yes Go To 6 . No Repair the (D506) LIN BUS circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) .
6. CLOCKSPRING Disconnect the Clockspring C2 harness connector. Turn the ignition on. Measure the voltage of the (D506) LIN BUS circuit at the Clockspring C2 harness connector. Is the voltage above 5 volts? Yes Replace the Clockspring in accordance with the Service Information. Refer to «CLOCKSPRING, REMOVAL»(ref-476529-S33678809682012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Go To 7 .
7. (D506) LIN BUS CIRCUIT FOR AN OPEN BETWEEN THE CLUSTER AND THE CLOCKSPRING Turn the ignition off. Disconnect the Cluster C3 harness connector. Measure the resistance of the (D506) LIN BUS circuit between the Clockspring C2 and Cluster C3 harness connectors. Is the resistance below 10K Ohms? Yes Replace the Cluster in accordance with the Service Information. Refer to «REMOVAL»(ref-476514-S25394978592012060400000) . Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) . No Repair the (D506) LIN BUS circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «BODY VERIFICATION TEST»(ref-476553-S41648749512012060400000) .

Scheme 392

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .