Active Cruise Control (acc) Module - Electrical Diagnostics Jeep Grand Cherokee WK2

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

B222F-00-FLASH WRITE PERFORMANCE

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

WHEN MONITORED

With the ignition on.

SET CONDITION

The Adaptive Cruise Control (ACC) Module detects a fault during an internal diagnostic check.

POSSIBLE CAUSES

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

DIAGNOSTIC TEST

1. REPLACE THE ACC MODULE IF DTC IS ACTIVE With the scan tool, read the active DTCs. Cycle the ignition switch from off to on at least five times, leaving the ignition on for a minimum of 90 seconds per cycle. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes With a scan tool, reprogram the ACC to the latest software version in accordance with the service information. Go to 2 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. CONTINUED ACTIVE CODE AFTER PROGRAMING With the scan tool, read the active DTCs. Does the scan tool display this DTC as active after programming? Yes Replace the ACC in accordance with the service information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Test is complete.

C124B-00-XBW RULE VIOLATION 01

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C124C-00-ACC DISABLED DUE TO ESP

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

An active Diagnostic Trouble Code (DTC) is stored in the Anti-Lock Brake System (ABS). The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Electronic Vehicle Information Center (EVIC). Once the DTC goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

For gasoline engines, always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC .

This is an informational DTC only. One or more Electronic Stability Program (ESP) system DTCs are present. Refer to DIAGNOSIS AND TESTING .

C125E-00-ACC SENSOR ADJUSTMENT REQUIRED

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

Continuously monitored with the ignition in run and the Adaptive Cruise Control (ACC) Module in normal mode.

ACC Module detects that it is physically misaligned. The ACC module will disable the ACC system and the SERVICE ACC message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after the ACC Module sees 100 consecutive key cycles of the STORED DTC.

For gasoline engines, always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC .

1. VERIFY DTC IS ACTIVE NOTE: A secure and unmodified mounting location is critical to the proper operation of the ACC system. NOTE: To help in the service of the ACC System, it is recommended speaking to the customer to find out what if the vehicle was in an accident prior to the DTC setting or the type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. NOTE: Vehicles that have had the suspension modified and/or a aftermarket grill installed that blocks the ACC module can cause the ACC system not to operate properly. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No No repair is necessary. Make sure the lens is free of dirt, damage, and other obstructions. Clear the DTC and verify proper operation of the ACC system.
2. INSPECT ACC MODULE MOUNTING NOTE: Make sure the ACC Sensor lens is free from dirt and debris (mud, dirt, ice, road debris) that would compromise the function of the ACC system. Perform a thorough visual and physical inspect of the ACC module and it's mounting location look for: damage to the ACC module, damaged lens, ACC module not fully seated or broken/missing securing clips. Is there damage to the ACC module? Yes Repair in accordance with the Service Information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Inspect the ACC module mounting location fasteners and repair as necessary. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C1266-00-ACC SENSOR BLINDED

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

Continuously monitored with the ignition in run and the Adaptive Cruise Control (ACC) Module in normal mode.

ACC Module detects that the lens is damaged or obstructed. The ACC module will disable the ACC system and the SERVICE ACC message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after the ACC Module sees 100 consecutive key cycles of the STORED DTC.

For gasoline engines, always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC .

1. VERIFY DTC IS ACTIVE NOTE: A secure and unmodified mounting location is critical to the proper operation of the ACC system. NOTE: To help in the service of the ACC System, it is recommended speaking to the customer to find out what if the vehicle was in an accident prior to the DTC setting or the type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. NOTE: Vehicles that have had the suspension modified and/or a aftermarket grill installed that blocks the ACC sensor can cause the ACC system not to operate properly. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No No repair is necessary. Make sure the lens is free of dirt, damage, and other obstructions. Clear the DTC and verify proper operation of the ACC system.
2. INSPECT ACC MODULE MOUNTING NOTE: Make sure the ACC Sensor lens is free from dirt and debris (mud, dirt, ice, road debris) that would compromise the function of the ACC system. Perform a thorough visual and physical inspect of the ACC module and it's mounting location look for: damage to the ACC module, damaged lens, ACC module not fully seated or broken/missing securing clips. Is there damage to the ACC module? Yes Repair in accordance with the Service Information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Inspect the ACC module mounting location fasteners and repair as necessary. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C1267-92-ACC VEHICLE REACTION - PERFORMANCE OR INCORRECT OPERATION

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC unavailable message will display in the Electronic Vehicle Information Center (EVIC). The DTC will set after five seconds. Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C1268-00-XBW RULE VIOLATION 02

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C1269-00-XBW RULE VIOLATION 03

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C126A-00-XBW RULE VIOLATION 04

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C126B-00-XBW RULE VIOLATION 05

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C126C-00-XBW RULE VIOLATION 06

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C126D-00-XBW RULE VIOLATION 07

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C126E-00-XBW RULE VIOLATION 08

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C126F-00-XBW RULE VIOLATION 09

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C1270-00-XBW RULE VIOLATION 10

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C1217-00-XBW RULE VIOLATION 11

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC NOTE: To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Repair all ABS and ESP DTCs before proceeding with the test. Using the scan tool attempt to clear the DTC. Can the DTC be cleared? Yes If the DTC can be cleared no further repair is necessary. No If the DTC cannot be cleared and will not go into a stored state replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C1277-00-ACC DISABLE DUE TO TCM

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

Normally when an active Diagnostic Trouble Code (DTC) is set against the Transmission Control Module (TCM) or the TCM is in LIMP IN mode. The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Electronic Vehicle Information Center (EVIC). Once the DTC changes from active to stored, the ACC system will return to normal operation. This DTC will clear after a 100 consecutive key cycles with the DTC stored.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. CHECK FOR DTCs IN TCM Turn the ignition on. Using a scan tool, read TCM DTCs. Are any DTCs present? Yes Diagnose and repair DTC(s). Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) . No Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to «INTERMITTENT CONDITION - NGC»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#36l-57l-intermittent-condition-pcmecm-reprogramming-gas-powertrain-verification-test-pre-diagnostic-troubleshooting-proc) or «INTERMITTENT DTC - 3.0L DIESEL»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#30l-diesel-intermittent-dtc-pcm-verification-test-pcmecmtcm-programming-pre-diagnostic-troubleshooting-procedure) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

Scheme 7

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

Continuously with the ignition on.

If the voltage to the Adaptive Cruise Control (ACC) is below 10 volts for more than 15 seconds.

Scheme 8

Scheme 9

1. RELATED DTC(S) PRESENT IN PCM Turn the ignition on. With the scan tool, select View DTCs in the Powertrain Control Module (PCM). Are there any charging system or related battery voltage DTCs present in the PCM? Yes Perform the appropriate diagnostic procedure. Refer to «DIAGNOSTIC CODE INDEX - 3.0L DIESEL»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#30l-diesel-diagnostic-code-index) or «DIAGNOSTIC CODE INDEX - NGC»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#36l-57l-diagnostic-code-index) . No Go To 2 .
2. CHECK FOR AN ACTIVE DTC With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . 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 ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
3. (F943) FUSED B(+) CIRCUIT OPEN OR SHORTED TO GROUND Turn the ignition off. Disconnect the ACC harness connector. Turn the ignition on. Measure the voltage of the (F943) Fused B(+) circuit. Is battery voltage present? Yes Go To 4 . No Repair the (F943) Fused B(+) circuit for an open, short to ground or high resistance. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
4. (Z909) GROUND CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Measure the resistance between ground and the (Z909) Ground circuit. Is the resistance below 5.0 Ohms? Yes Replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Repair the (Z909) Ground circuit for an open or high resistance. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C2129-17-BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD

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

Continuously.

If the voltage to the Steering Column Control Module (SCCM) is above 16 volts for more than 15 seconds.

1. RELATED DTC(S) PRESENT IN THE PCM Ignition on, engine not running. With the scan tool, select View DTCs in the Powertrain Control Module (PCM). Are there any charging system or related battery voltage DTCs present in the PCM? Yes Perform the appropriate diagnostic procedure. Refer to «DIAGNOSTIC CODE INDEX - 3.0L DIESEL»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#30l-diesel-diagnostic-code-index) or «DIAGNOSTIC CODE INDEX - NGC»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#36l-57l-diagnostic-code-index) . No Go To 2 .
2. CHECK FOR AN ACTIVE DTC Ignition on, engine not running. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Replace the ACC Module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . 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 ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C212A-84-SYSTEM VOLTAGE - SIGNAL BELOW ALLOWABLE RANGE

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

Continuously with the ignition on.

The Adaptive Cruise Control (ACC) module receives a low charging system voltage message over the CAN Bus or detects voltage under 10 volts on the (F943) Fused B(+) circuit.

Scheme 10

1. CHECK PCM FOR CHARGING SYSTEM DTC With the scan tool, read the PCM DTCs. Are there any Charging System DTCs set in the PCM? Yes Perform the Charging System diagnostic procedure. Refer to «DIAGNOSTIC CODE INDEX - 3.0L DIESEL»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#30l-diesel-diagnostic-code-index) or «DIAGNOSTIC CODE INDEX - NGC»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#36l-57l-diagnostic-code-index) . No Go To 2 .
2. CHECK FOR AN ACTIVE DTC With the scan tool, read the active ACC module DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . 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 ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
3. CHECK THE VOLTAGE AT THE (F943) FUSED B(+) CIRCUIT Disconnect the ACC module harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F943) Fused Ignition Switch Output (Run-Start) circuit. Does the test light illuminate brightly? Yes Replace and program the Adaptive Cruise Control (ACC) in accordance with the Service Information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Repair the (F943) Fused B(+) circuit as necessary. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C212A-85-SYSTEM VOLTAGE - SIGNAL ABOVE ALLOWABLE RANGE

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

Continuously with the ignition on.

The Adaptive Cruise Control (ACC) Module receives a high charging system voltage message over the CAN Bus or detects voltage over 16 volts on the (F943) Fused B(+) circuit.

1. CHECK PCM FOR CHARGING SYSTEM DTC With the scan tool, read the PCM DTCs. Are there any Charging System DTCs set in the PCM? Yes Perform the Charging System diagnostic procedure. Refer to «DIAGNOSTIC CODE INDEX - 3.0L DIESEL»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#30l-diesel-diagnostic-code-index) or «DIAGNOSTIC CODE INDEX - NGC»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#36l-57l-diagnostic-code-index) . No Go To 2 .
2. CHECK FOR AN ACTIVE DTC With the scan tool, read the active ACC Module DTCs. Does the scan tool display this DTC as active? Yes Replace and program the Adaptive Cruise Control (ACC) in accordance with the Service Information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . 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 ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C2206-00-VEHICLE CONFIGURATION MISMATCH

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

Continuously monitored with the engine running, the Adaptive Cruise Control (ACC) Module voltage at battery voltage, and the ACC Module in normal mode.

Vehicle configuration does not match. The ACC module will disable the ACC system and the SERVICE ACC message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. After a successful learning process the active DTC will be cleared automatically.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACC MODULE CHANGED NOTE: If the ACC module is swapped from another vehicle performing the horizontal sensor alignment procedure will resolve the concern. Was the ACC Module replaced with one from another vehicle? Yes Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) and perform the horizontal sensor alignment procedure. No Replace the ACC Module in accordance with the Service Information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C2210-00-ECU OVERTEMPERATURE

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

Continuously monitored with the engine running, the Adaptive Cruise Control (ACC) Module voltage at battery voltage, and the ACC Module in normal mode.

ACC Module detects internal temperature greater than 115°C (239°F). The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after the ACC Module sees 100 consecutive key cycles of the STORED DTC.

For gasoline engines, always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC .

1. VERIFY DTC IS ACTIVE NOTE: To help in the service of the ACC System, it is recommended speaking to the customer to find out what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No No repair is necessary. Make sure the lens is free of dirt, damage, and other obstructions. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. VERIFY AMBIENT TEMPERATURE READING Using a scan tool, read PCM ambient air temperature reading. Is the ambient air temperature reading 85°C (185°F)? Yes The ACC Module has detected the ambient temperature above operating range. Once the temperature has decreased below 85°C (185°F), ACC operation will be restored. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Replace the ACC module in accordance with the Service Information. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

C2212-00-ECU IN - PLANT MODE ACTIVE

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

Continuously monitored with the ignition key in run, the Adaptive Cruise Control (ACC) Module voltage at battery voltage, and the ACC Module in normal mode.

ACC Module is in the In-Plant mode. The ACC module will disable the ACC system and the ACC PLANT MODE message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. After a successful learning process, the active DTC will be cleared automatically.

For gasoline engines, always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC .

1. VERIFY DTC IS ACTIVE Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) and perform the SENSOR VERTICAL ALIGNMENT procedure. NOTE: Running the Alignment Procedure will remove the module from the In-Plant mode. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No No repair is necessary. Make sure the lens is free of dirt, damage, and other obstructions that would hinder the performance of the ACC imager lens. Clear the DTC and verify proper operation of the ACC system.

C2215-00-CRUISE CONTROL MODULE PERFORMANCE

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

Continuously monitored with the engine running, the Adaptive Cruise Control (ACC) Module voltage at battery voltage, and the ACC Module in normal mode.

Internal ACC Module failure detected. The ACC module will disable the ACC system and the SERVICE ACC message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

For gasoline engines, always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC .

1. VERIFY DTC IS ACTIVE Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Make sure the lens is free of dirt, damage, and other obstructions. Clear the DTC and verify the proper operation of the ACC system. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . Go To 2 . No No repair is necessary. Make sure the lens is free of dirt, damage, and other obstructions. Clear the DTC and verify the proper operation of the ACC system. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. VERIFY DTC Using a scan tool, read ACC DTCs. Did the DTC reset as active? Yes Replace the ACC Module in accordance with the Service Information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No No repair is necessary. Test is complete

C2315-00-ACC DISABLE DUE TO PCM FAULT

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

Normally when an active Diagnostic Trouble Code (DTC) is set in the Powertrain Control Module (PCM). May also set if engine is operated at RPM limit (e.g. driver performing wide open throttle [WOT] maneuvers). The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Electronic Vehicle Information Center (EVIC). Once the DTC changes from active to stored, the ACC system will return to normal operation. This DTC will clear after the ACC Module sees 100 consecutive key cycles with the DTC stored.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. CHECK FOR DTCs IN PCM Turn the ignition on. Using a scan tool, read PCM DTCs. Are any DTCs present? Yes Diagnose and repair the DTC(s). Refer to «DIAGNOSTIC CODE INDEX - 3.0L DIESEL»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#30l-diesel-diagnostic-code-index) or «DIAGNOSTIC CODE INDEX - NGC»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#36l-57l-diagnostic-code-index) . No DTC set due to engine operated at RPM limit. Using the scan tool, clear ACC module DTCs. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

P0585-00 SPEED CONTROL SWITCH 1/2 CORRELATION

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

THEORY OF OPERATION

The Speed Control Switch is hardwired to the Steering Column Control Module (SCCM). The SCCM is located near the top of the steering column below the steering wheel. The SCCM includes the steering column shroud, the Steering Angle Sensor (SAS), the Clockspring, the Multi-function Switch, a Steering Column Power Tilt and Telescope Switch (if equipped), and a trim cover. The SCCM is replaced as an entire assembly.

Continuously with the ignition on.

The Steering Column Control Module (SCCM) has detected that a non-permissable combination has occurred in the Speed Control Switch.

1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE Turn the ignition on. Using the scan tool, read the active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#steering-control-module-scm-electrical-diagnostics) and perform the P0585-00 Speed Control Switch 1/2 Correlation diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the Stored Lost Communication DTCs diagnostic procedure.

P1593-2A-SPEED CONTROL SWITCH 1/2 STUCK

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

The Speed Control Switch is hardwired to the Steering Column Control Module (SCCM). The SCCM is located near the top of the steering column below the steering wheel. The SCCM includes the steering column shroud, the Steering Angle Sensor (SAS), the Clockspring, the Multi-function Switch, a Steering Column Power Tilt and Telescope Switch (if equipped), and a trim cover. The SCCM is replaced as an entire assembly.

Continuously with the ignition on.

Fault signifies any Speed Control Switch is held/stuck for greater than 120 seconds.

1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE Turn the ignition on. Using the scan tool, read the active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#steering-control-module-scm-electrical-diagnostics) and perform the P1593-2A-Speed Control Switch 1/2 Stuck diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the Stored Lost Communication DTCs diagnostic procedure.

P1666-00-CRUISE CONTROL MODULE INTERNAL

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

Continuously monitored with the engine running, the Adaptive Cruise Control (ACC) Module voltage at battery voltage, and the ACC Module in normal mode.

Internal ACC Module failure detected. The ACC module will disable the ACC system and the SERVICE ACC message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

For gasoline engines, always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC .

1. VERIFY DTC IS ACTIVE Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Replace the ACC Module in accordance with the Service Information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No No repair is necessary. Make sure the lens is free of dirt, damage, and other obstructions. Clear the DTC and verify the proper operation of the ACC system. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

U0002-00-CAN C BUS OFF PERFORMANCE

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

Ignition run time is greater than one second.

Battery voltage between 9 and 16 volts.

Engine run time greater than three seconds.

Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.

1. ACTIVE DTC Ignition on, engine not running. With the scan tool, select view DTCs. Is the DTC Active at this time? Yes Diagnose the U0002-00-CAN C BUS OFF PERFORMANCE using the U0001-CAN C BUS CIRCUIT procedure. Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0001-CAN C Bus diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the Stored Lost Communication DTCs diagnostic procedure.

U0100-00-LOST COMMUNICATION WITH PCM

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

Continuously when the ignition is on.

The battery voltage between 10 and 16 Volts.

Ignition Off Draw (IOD) fuse installed.

Totally Integrated Power Module (TIPM) is configured correctly.

Bus messages not received from the Powertrain Control Module (PCM) for approximately two to five seconds.

1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding. Turn the ignition on. Using the scan tool, read the active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0100-Lost Communication with PCM diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the Stored Lost Communication DTCs diagnostic procedure.

U0101-00-LOST COMMUNICATION WITH TCM

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

Bus messages not received from the Transmission Control Module (TCM) for approximately 500ms.

1. VERIFY DTC IS ACTIVE NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding. Turn the ignition on. With the scan tool, read active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0101 Lost Communication with TCM diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the Stored Lost Communication DTCs diagnostic procedure.

U0114-00-LOST COMMUNICATION WITH FINAL DRIVE CONTROL MODULE (FDCM) (DTCM)

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

Continuously when the ignition is on.

Battery Voltage between 10 and 16 Volts.

Ignition Off Draw (IOD) fuse installed.

Totally Integrated Power Module (TIPM) is configured correctly.

The Electronic Limited Slip Differential (ELSD) doesn't receive a Final Drive Control Module (FDCM) (DTCM) message over the CAN C BUS circuit for approximately two to five seconds.

1. VERIFY THE DTC IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery Voltage is between 10 and 16 Volts before proceeding. Turn the ignition on. Using a scan tool, read DTCs. Is the DTC active at this time? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0114-LOST COMMUNICATION WITH FINAL DRIVE CONTROL MODULE (FDCM) (DTCM) diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the Stored Lost Communication DTCs diagnostic procedure.

U0121-00-LOST COMMUNICATION WITH ANTI-LOCK BRAKE MODULE

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

Ignition run time is greater than one second.

Battery voltage between 9 and 16 volts.

Engine run time greater than three seconds.

Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.

1. ACTIVE DTC Ignition on, engine not running. With the scan tool, select view DTCs. Is the DTC Active at this time? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0121-Lost Communication with Anti-Lock Brake System (ABS) Module diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the Stored Lost Communication DTCs diagnostic procedure.

U0146-00-LOST COMMUNICATION WITH CENTRAL GATEWAY

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

Continuously when the ignition is on.

Battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fuse installed.

Totally Integrated Power Module (TIPM) is configured correctly.

Bus messages not received from the Central Gateway for approximately two to five seconds.

1. VERIFY DTC IS ACTIVE NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding. Turn the ignition on. With the scan tool, read active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0141-Lost Communication with IPM (FCM/TIPM) diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the Stored Lost Communication DTCs diagnostic procedure.

U0401-00-IMPLAUSIBLE DATA RECEIVED FROM PCM

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

The ACC Module receives an implausible (default/error value or toggle error or parity error are present) message from the Powertrain Control Module (PCM) for 600 millisecond. The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. VERIFY DTC IS ACTIVE NOTE: Diagnose all communication DTCs before continuing. Ignition on, engine not running. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention the CAN circuits. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. VERIFY PCM IS ACTIVE ON CAN C BUS Using a scan tool, select ECU View. Verify that the PCM active on the bus. Is the PCM active on the bus? Yes Go To 3 . No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0100-LOST COMMUNICATION WITH ECM/PCM diagnostic procedure.
3. CHECK FOR ACTIVE OR STORED DTCs IN PCM Using a scan tool, read PCM DTCs. Are any DTCs active or stored in the PCM? Yes Refer to «DIAGNOSTIC CODE INDEX - 3.0L DIESEL»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#30l-diesel-diagnostic-code-index) or «DIAGNOSTIC CODE INDEX - NGC»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#36l-57l-diagnostic-code-index) and perform the appropriate diagnostic procedure . No Go To 4 .
4. CHECK FOR ACTIVE OR STORED COMMUNICATION DTCs IN TIPM Using a scan tool, read TIPM DTCs. Are any active or stored PCM Communication DTCs set in the TIPM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the appropriate diagnostic procedure. No Replace and program the ACC Module in accordance with the Service Information. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

U0402-00-IMPLAUSIBLE DATA RECEIVED FROM TCM

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

The ACC Module receives an implausible (default/error value or toggle error or parity error are present) message from the Transmission Control Module (TCM) for 600 millisecond. The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after the ACC Module sees 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. VERIFY DTC IS ACTIVE NOTE: Diagnose all communication failures before continuing. Ignition on, engine not running. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention the CAN circuits. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. VERIFY TCM IS ACTIVE ON THE CAN C BUS With the scan tool, select ECU View. Verify that the TCM is active on the bus. Is the TCM active on the bus? Yes Go To 3 . No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0101-LOST COMMUNICATION WITH TCM diagnostic procedure.
3. CHECK FOR ACTIVE OR STORED DTCs IN TCM Are any DTCs active or stored in the TCM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) and perform the appropriate diagnostic procedure. No Go To 4 .
4. CHECK FOR ACTIVE OR STORED COMMUNICATION DTCs IN TIPM Using a scan tool, read TIPM DTCs. Are any active or stored TCM Communication DTCs set in the TIPM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the appropriate diagnostic procedure. No Replace and program the ACC Module in accordance with the Service Information. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

U0414-00-IMPLAUSIBLE DATA RECEIVED FROM FDCM (DTCM)

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

Continuously with the ignition on.

The ACC Module receives an implausible (default/error value or toggle error or parity error are present) message from the Drive Train Control Module (DTCM). The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

1. VERIFY DTC IS ACTIVE NOTE: Diagnose all communication DTCs before continuing. Ignition on, engine not running. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention the CAN circuits. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. VERIFY DTCM IS ACTIVE ON CAN BUS Using a scan tool, select ECU View. Verify that the DTCM active on the bus. Is the DTCM active on the bus? Yes Go To 3 . No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the NO RESPONSE FROM DTCM (DRIVETRAIN CONTROL MODULE) diagnostic procedure.
3. CHECK FOR ACTIVE OR STORED DTCs IN DTCM Using a scan tool, read PCM DTCs. Are any DTCs active or stored in the PCM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#drivetrain-control-module-dtcm-electrical-diagnostics) and perform the appropriate diagnostic procedure. No Go To 4 .
4. CHECK FOR ACTIVE OR STORED COMMUNICATION DTCs IN TIPM Using a scan tool, read TIPM DTCs. Are any active or stored PCM Communication DTCs set in the TIPM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the appropriate diagnostic procedure. No Replace and program the ACC Module in accordance with the Service Information. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

U0415-00-IMPLAUSIBLE DATA RECEIVED FROM ABS

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

The ACC Module receives an implausible (default/error value or toggle error or parity error are present) message from the Anti-Lock Brakes Module (ABS) Module for 300 millisecond. The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Diagnose all CAN communication failures before continuing. Ignition on, engine not running. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention the CAN circuits. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. VERIFY ABS MODULE IS ACTIVE ON CAN C BUS Using a scan tool, select ECU View. Verify that the ABS Module is active on the bus. Is the ABS Module active on the bus? Yes Go To 3 . No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0121-LOST COMMUNICATION WITH ABS diagnostic procedure.
3. CHECK FOR ACTIVE OR STORED DTCs IN ABS MODULE Using a scan tool, read ABS Module DTCs. Are any DTCs active or stored in the ABS Module? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/anti-locktraction-control/#antilock-brake-system-abs-electrical-diagnostics) and perform the appropriate diagnostic procedure. No Go To 4 .
4. CHECK FOR ACTIVE OR STORED COMMUNICATION DTCs IN TIPM Using a scan tool, read TIPM DTCs. Are any active of stored ABS Module Communication DTCs set in the TIPM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the appropriate diagnostic procedure. No Replace and program the ACC Module in accordance with the Service Information. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

U0429-00-IMPLAUSIBLE DATA RECEIVED FROM SCM

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

Continuously monitored with the engine running and the ACC Module in normal mode.

The Adaptive Cruise Control Module (ACC) Module receives an implausible (default/error value or toggle error or parity error are present) message from the Steering Control Module (SCM) for 60 to 180 millisecond. The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after the a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Diagnose all CAN communication failures before continuing. Ignition on, engine not running. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention the CAN circuits. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. VERIFY SCM IS ACTIVE ON CAN C BUS Using a scan tool, select ECU View. Verify that the SCM is active on the bus. Is the SCM active on the bus? Yes Go To 3 . No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#communication-non-dtc-based-diagnostics) and perform the No Response from SCM diagnostic procedure.
3. CHECK FOR ACTIVE OR STORED DTCs IN SCM Using a scan tool, read SCM DTCs. Are any DTCs active or stored in the SCM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#steering-control-module-scm-electrical-diagnostics) and perform the appropriate diagnostic procedure. No Go To 4 .
4. CHECK FOR ACTIVE OR STORED COMMUNICATION DTCs IN TIPM Using a scan tool, read TIPM DTCs. Are any active or stored SCM Communication DTCs set in the TIPM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the appropriate diagnostic procedure. No Go To 5 .
5. CHECK FOR STUCK SPEED CONTROL SWITCH (CRUISE CONTROL STALK) NOTE: There is a possibility that the Speed Control Switch has internal damages causing a jammed signal to be sent to both the Steering Control Module (SCM) and Adaptive Cruise Control (ACC) module. Using a scan tool, read the Speed Control Switch Inputs to the SCM to verify if a stuck switch condition exits. Using a scan tool, select Data Display in SCM and then select Cruise Control Status and Cruise Control from the Inputs Menu. The Cruise Control input Status changes when the Cruise Stalk On/Off button is pressed and released. Normally, the status should read Set when the button is pressed and Not Set when the button is not pressed. Operate the switch. If the input status does not correspond to the switch position as specified, the switch is jammed. The Cruise Control Status input status changes for each Cruise Stalk function position. Normally, the status should read None (when not moved), Cancel (when in CANCEL position), Set (when in DISTANCE position), Acc/Res (when in ACCEL/RESUME position) and Coast (when in DECEL/SET position). Operate the switch in each position. If the input status does not correspond to the switch position as specified, the switch is jammed. Does the input status correspond to the switch position as specified? Yes Replace and program the ACC Module in accordance with the Service Information. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Replace the Speed Control Switch in accordance with the Service Information. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

U0447-00-IMPLAUSIBLE DATA RECEIVED FROM CENTRAL GATEWAY

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

Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

The ACC Module receives an implausible (default/error value or toggle error or parity error are present) message from the Totally Integrated Power Module (TIPM). The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Diagnose all communication DTCs before continuing. Ignition on, engine not running. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention the CAN circuits. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. CHECK FOR ACTIVE OR STORED COMMUNICATION DTCs IN TIPM Using a scan tool, read TIPM DTCs. Are any active or stored Communication DTCs set in the TIPM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the appropriate diagnostic procedure. No Go To 3 .
3. TIPM COMMUNICATION RELATED DTCs IN OTHER MODULES With the scan tool, select Network Diagnostics. Is there more than one module with active DTCs "Logged Against" the TIPM at this time? Yes Replace and program the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) . No Replace and program the ACC Module in accordance with the Service Information. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

U110A-00-LOSS OF COMMUNICATIONS WITH SCM - CAN-C

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

The Adaptive Cruise Control (ACC) communicates with other controllers over the CAN C bus. The ACC continuously monitors the bus activity and receives the messages it needs. If the ACC does not receive messages from the SAS, then this fault will set. The ACC module will disable the ACC system and the ACC UNAVAILABLE message will display in the Cabin Compartment Node (CCN). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.

Ignition on for more than five seconds and battery voltage between 10 and 16 Volts.

The Adaptive Cruise Control (ACC) module no longer detects any messaging from the Steering Angle Sensor (SAS) for more than 0.5 of a second after monitoring conditions have been fulfilled.

1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Diagnose all communication DTCs before continuing. Ignition on, engine not running. Using a scan tool, read ACC DTCs. Is the DTC active at this time? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention the CAN circuits. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .
2. VERIFY SCCM (SAS) IS ACTIVE ON CAN C BUS Using a scan tool, select ECU View. Verify that the SCCM (SAS) active on the bus. Is the SCCM (SAS) active on the bus? Yes Go To 3 . No Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the U0212-LOST COMMUNICATION WITH SCM diagnostic procedure.
3. CHECK FOR ACTIVE OR STORED DTCs IN SCCM (SAS) Using a scan tool, read SCCM (SAS) DTCs. Are any DTCs active or stored in the SCCM (SAS)? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#steering-control-module-scm-electrical-diagnostics) and perform the appropriate diagnostic procedure. No Go To 4 .
4. CHECK FOR ACTIVE OR STORED COMMUNICATION DTCs IN TIPM Using a scan tool, read TIPM DTCs. Are any active or stored PCM Communication DTCs set in the TIPM? Yes Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) and perform the appropriate diagnostic procedure. No Replace and program the ACC Module in accordance with the Service Information. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) .

U1600-00-ECU APPLICATION SOFTWARE MISMATCH

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

With the ignition on.

The Adaptive Cruise Control (ACC) Module was reprogrammed with a corrupted flash file, or the reprogramming of the ACC was interrupted before it was complete.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC or PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL .

1. ACTIVE DTC Ignition on, engine not running. With a scan tool, view DTCs. Is the status Active for this DTC? Yes With a scan tool, reprogram the ACC to the latest software version in accordance with the service information. Perform the ACC MODULE VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Perform the INTERMITTENT DTC diagnostic procedure. Refer to «INTERMITTENT CONDITION - NGC»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#36l-57l-intermittent-condition-pcmecm-reprogramming-gas-powertrain-verification-test-pre-diagnostic-troubleshooting-proc) or «INTERMITTENT DTC - 3.0L DIESEL»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#30l-diesel-intermittent-dtc-pcm-verification-test-pcmecmtcm-programming-pre-diagnostic-troubleshooting-procedure) .

1. ADAPTIVE CRUISE CONTROL VERIFICATION TEST Disconnect all jumper wires and reconnect all previously disconnected components and connectors. With the scan tool, select Clear Stored DTCs. Make sure that all accessories are turned off and that the battery is fully charged. If the ACC Module was replaced or moved in any way, the ACC Module must be aligned. Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) and perform the SENSOR VERTICAL ALIGNMENT procedure. Test drive the vehicle and verify proper operation. With the scan tool, select View DTCs in the ACC Control Module. Are there any DTCs present in the ACC Module? Yes Return to the «DIAGNOSTIC CODE INDEX»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics__diagnostic-code-index) and perform the appropriate diagnostic test. Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/cruise-control-systems/#active-cruise-control-acc-module-electrical-diagnostics) . No Repair is complete.

See also:
• PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - NGC
• PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 3.0L DIESEL
• SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL , REMOVAL
• DIAGNOSIS AND TESTING
• DIAGNOSIS AND TESTING
• DIAGNOSTIC CODE INDEX - 3.0L DIESEL
• DIAGNOSTIC CODE INDEX - NGC
• DIAGNOSIS AND TESTING
• DIAGNOSIS AND TESTING
• DIAGNOSIS AND TESTING
• DIAGNOSIS AND TESTING
• STANDARD PROCEDURE
• B222F-00
• C124B-00
• C124C-00
• C125E-00
• C1266-00
• C1267-92
• C1268-00
• C1269-00
• C126A-00
• C126B-00
• C126C-00
• C126D-00
• C126E-00
• C126F-00
• C1270-00
• C1217-00
• C1277-00
• C2129-16
• C2129-17
• C212A-84
• C212A-85
• C2206-00
• C2210-00
• C2212-00
• C2215-00
• C2315-00
• P0585
• P1593-2A
• P1666-00
• U0002-00
• U0100-00
• U0101-00
• U0114-00
• U0121-00
• U0146-00
• U0401-00
• U0402-00
• U0414-00
• U0415-00
• U0429-00
• U0447-00
• U110A-00
• U1600-00
• DIAGNOSTIC CODE INDEX