Contents Wiring diagrams Section: Communication Devices All sections

Communication - Non-Dtc Based Diagnostics Jeep Grand Cherokee WK2

Communication Devices 151 illustrations ~17871 words

Scheme 151

Scheme 151: BOTH DIAGNOSTIC CAN C (+) AND DIAGNOSTIC CAN C (-) CIRCUITS OPEN

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

WHEN MONITORED

When the scan tool queries the Totally Integrated Power Module (TIPM).

SET CONDITION

The scan tool has detected an open condition on both Diagnostic CAN C circuits.

POSSIBLE CAUSES

Possible Causes
(D72) DIAGNOSTIC CAN C (+) CIRCUIT OPEN
(D71) DIAGNOSTIC CAN C (-) CIRCUIT OPEN
TOTALLY INTEGRATED POWER MODULE (TIPM)

Scheme 152

Scheme 152: DIAGNOSTIC TEST

Scheme 153

Scheme 153
  1. CHECK THE STATUS OF THE ERROR MESSAGE NOTE: Make sure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be displayed. NOTE: Make sure the scan tool is updated to the latest software. With the scan tool, record the error message. Disconnect the scan tool from the DLC. Cycle the ignition from on to off three times. Reconnect the scan tool. Turn the ignition on. Does the scan tool display this same error message? Yes Go To 2 . No The conditions that caused this error message to set 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. (D72) DIAGNOSTIC CAN C (+) CIRCUIT OPEN Turn the ignition off. Disconnect the TIPM C7 harness connector. Disconnect the scan tool from the DLC. NOTE: Check the connectors at both the DLC and the TIPM. Measure the resistance of the (D72) Diagnostic CAN C (+) circuit between the TIPM C7 harness connector and the DLC. Is the resistance below 5.0 Ohms? Yes Go To 3 . No Repair the open in the (D72) Diagnostic CAN C (+) circuit. 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) .
  3. (D71) DIAGNOSTIC CAN C (-) CIRCUIT OPEN Measure the resistance of the (D71) Diagnostic CAN C (-) circuit between the TIPM C7 harness connector and the DLC. Is the resistance below 5.0 Ohms? Yes Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the TIPM in accordance with the Service Information. Refer to «MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D71) Diagnostic CAN C (-) circuit. 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) .

DIAGNOSTIC CAN C (+) AND/OR DIAGNOSTIC CAN C (-) CIRCUITS HIGH

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

When the scan tool queries the Totally Integrated Power Module (TIPM).

The scan tool has detected a shorted high condition on either or both Diagnostic CAN C circuits.

Possible Causes
(D72) DIAGNOSTIC CAN C (+) CIRCUIT SHORTED TO VOLTAGE
(D71) DIAGNOSTIC CAN C (-) CIRCUIT SHORTED TO VOLTAGE
TOTALLY INTEGRATED POWER MODULE (TIPM)

Scheme 154

Scheme 154: DIAGNOSTIC TEST
  1. CHECK THE STATUS OF THE ERROR MESSAGE NOTE: Make sure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be displayed. NOTE: Make sure the scan tool is updated to the latest software. With the scan tool, record the error message. Disconnect the scan tool from the DLC. Cycle the ignition from on to off three times. Reconnect the scan tool. Turn the ignition on. Does the scan tool display this same error message? Yes Go To 2 . No The conditions that caused this error message to set 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. DIAGNOSTIC CAN C CIRCUITS SHORTED TO VOLTAGE Turn the ignition off. Disconnect the TIPM C7 harness connector. Disconnect the scan tool from the DLC. Turn the ignition on. Measure the voltage of the Diagnostic CAN C circuits. Is the voltage above 6.0 volts for either circuit? Yes Repair the short to voltage in the Diagnostic CAN C circuits. 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 Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the TIPM in accordance with the Service Information. Refer to «MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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) .

DIAGNOSTIC CAN C (+) CIRCUIT LOW

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

When the scan tool queries the Totally Integrated Power Module (TIPM).

The scan tool has detected a shorted low condition on the (D72) Diagnostic CAN C (+) circuit.

Possible Causes
(D72) DIAGNOSTIC CAN C (+) CIRCUIT SHORTED TO GROUND
TOTALLY INTEGRATED POWER MODULE (TIPM)

Scheme 155

Scheme 155: DIAGNOSTIC TEST
  1. CHECK THE STATUS OF THE ERROR MESSAGE NOTE: Make sure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be displayed. NOTE: Make sure the scan tool is updated to the latest software. With the scan tool, record the error message. Disconnect the scan tool from the DLC. Cycle the ignition from on to off three times. Reconnect the scan tool. Turn the ignition on. Does the scan tool display this same error message? Yes Go To 2 . No The conditions that caused this error message to set 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. (D72) DIAGNOSTIC CAN C (+) CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C7 harness connector. Disconnect the scan tool from the DLC. Measure the resistance between ground and the (D72) Diagnostic CAN C (+) circuit. Is the resistance below 100.0 Ohms? Yes Repair the short to ground in the (D72) Diagnostic CAN C (+) circuit. 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 Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the TIPM in accordance with the Service Information. Refer to «MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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) .

DIAGNOSTIC CAN C (-) CIRCUIT LOW

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

When the scan tool queries the Totally Integrated Power Module (TIPM).

The scan tool has detected a shorted low condition on the (D71) Diagnostic CAN C (-) circuit.

Possible Causes
(D71) DIAGNOSTIC CAN C (-) CIRCUIT SHORTED TO GROUND
TOTALLY INTEGRATED POWER MODULE (TIPM)

Scheme 156

Scheme 156: DIAGNOSTIC TEST
  1. CHECK THE STATUS OF THE ERROR MESSAGE NOTE: Make sure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be displayed. NOTE: Make sure the scan tool is updated to the latest software. With the scan tool, record the error message. Disconnect the scan tool from the DLC. Cycle the ignition from on to off three times. Reconnect the scan tool. Turn the ignition on. Does the scan tool display this same error message? Yes Go To 2 . No The conditions that caused this error message to set 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. (D71) DIAGNOSTIC CAN C (-) CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C7 harness connector. Disconnect the scan tool from the DLC. Measure the resistance between ground and the (D71) Diagnostic CAN C (-) circuit. Is the resistance below 100.0 Ohms? Yes Repair the short to ground in the (D71) Diagnostic CAN C (-) circuit. 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 Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the TIPM in accordance with the Service Information. Refer to «MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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) .

DIAGNOSTIC CAN C (+) CIRCUIT OPEN

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

When the scan tool queries the Totally Integrated Power Module (TIPM).

The scan tool has detected an open condition on the (D72) Diagnostic CAN C (+) circuit.

Possible Causes
(D72) DIAGNOSTIC CAN C (+) CIRCUIT OPEN
TOTALLY INTEGRATED POWER MODULE (TIPM)

Scheme 157

Scheme 157: DIAGNOSTIC TEST
  1. CHECK THE STATUS OF THE ERROR MESSAGE NOTE: Make sure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be displayed. NOTE: Make sure the scan tool is updated to the latest software. With the scan tool, record the error message. Disconnect the scan tool from the DLC. Cycle the ignition from on to off three times. Reconnect the scan tool. Turn the ignition on. Does the scan tool display this same error message? Yes Go To 2 . No The conditions that caused this error message to set 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. (D72) DIAGNOSTIC CAN C (+) CIRCUIT OPEN Turn the ignition off. Disconnect the TIPM C7 harness connector. Disconnect the scan tool from the DLC. Measure the resistance of the (D72) Diagnostic CAN C (+) circuit between the TIPM C7 harness connector and the DLC. Is the resistance below 5.0 Ohms? Yes Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the TIPM in accordance with the Service Information. Refer to «MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D72) Diagnostic CAN C (+) circuit. 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) .

DIAGNOSTIC CAN C (-) CIRCUIT OPEN

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

When the scan tool queries the Totally Integrated Power Module (TIPM).

The scan tool has detected an open condition on the (D71) Diagnostic CAN C (-) circuit.

Possible Causes
(D71) DIAGNOSTIC CAN C (-) CIRCUIT OPEN
TOTALLY INTEGRATED POWER MODULE (TIPM)

Scheme 158

Scheme 158: DIAGNOSTIC TEST
  1. CHECK THE STATUS OF THE ERROR MESSAGE NOTE: Make sure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be displayed. NOTE: Make sure the scan tool is updated to the latest software. With the scan tool, record the error message. Disconnect the scan tool from the DLC. Cycle the ignition from on to off three times. Reconnect the scan tool. Turn the ignition on. Does the scan tool display this same error message? Yes Go To 2 . No The conditions that caused this error message to set 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. (D71) DIAGNOSTIC CAN C (-) CIRCUIT OPEN Turn the ignition off. Disconnect the TIPM C7 harness connector. Disconnect the scan tool from the DLC. Measure the resistance of the (D71) Diagnostic CAN C (-) circuit between the TIPM C7 harness connector and the DLC. Is the resistance below 5.0 Ohms? Yes Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the TIPM in accordance with the Service Information. Refer to «MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D71) Diagnostic CAN C (-) circuit. 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) .

DIAGNOSTIC CAN C (+) SHORTED TO DIAGNOSTIC CAN C (-)

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

When the scan tool queries the Totally Integrated Power Module (TIPM).

The scan tool has detected a shorted together condition on the Diagnostic CAN C circuits.

Possible Causes
(D72) DIAGNOSTIC CAN C (+) CIRCUIT SHORTED TO THE (D71) DIAGNOSTIC CAN C (-) CIRCUIT
TOTALLY INTEGRATED POWER MODULE (TIPM)

Scheme 159

Scheme 159: DIAGNOSTIC TEST
  1. CHECK THE STATUS OF THE ERROR MESSAGE NOTE: Make sure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be displayed. NOTE: Make sure the scan tool is updated to the latest software. With the scan tool, record the error message. Disconnect the scan tool from the DLC. Cycle the ignition from on to off three times. Reconnect the scan tool. Turn the ignition on. Does the scan tool display this same error message? Yes Go To 2 . No The conditions that caused this error message to set 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. (D72) DIAGNOSTIC CAN C (+) CIRCUIT SHORTED TO (D71) DIAGNOSTIC CAN C (-) CIRCUIT Turn the ignition off. Disconnect the TIPM C7 harness connector. Disconnect the scan tool from the DLC. Measure the resistance between the (D72) Diagnostic CAN C (+) circuit and the (D71) Diagnostic CAN C (-) circuit. Is the resistance below 100.0 Ohms? Yes Repair the short between the (D72) Diagnostic CAN C (+) and (D71) Diagnostic CAN C (-) circuits. 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 Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the TIPM in accordance with the Service Information. Refer to «MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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) .

Scheme 160

Scheme 160: NO RESPONSE FROM ABS (ANTILOCK BRAKE MODULE)

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

Possible Causes
(A107) (A111) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z907) (Z908) GROUND CIRCUIT OPEN
(F941) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
ANTILOCK BRAKE MODULE (ABS)

Scheme 161

Scheme 161: DIAGNOSTIC TEST

Scheme 162

Scheme 162

Scheme 163

Scheme 163

Scheme 164

Scheme 164

Scheme 165

Scheme 165
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN C hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. (A107) (A111) FUSED B(+) CIRCUIT OPEN OR SHORTED Turn the ignition off. Disconnect the Antilock Brake Module harness connector. Using a 12-volt test light connected to ground, check the (A107) and (A111) Fused B(+) circuits. Does the test light illuminate brightly for each circuit? Yes Go To 3 . No Repair the open or short in the (A107) or (A111) Fused B(+) circuit. Perform the ABS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/anti-locktraction-control/#antilock-brake-system-abs-electrical-diagnostics) .
  3. (Z907) (Z908) GROUND CIRCUIT OPEN Using a 12-volt test light connected to 12-volts, check the (Z907) and (Z908) Ground circuits. Does the test light illuminate brightly for each circuit? Yes Go To 4 . No Repair the open in the (Z907) or (Z908) Ground circuit. Perform the ABS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/anti-locktraction-control/#antilock-brake-system-abs-electrical-diagnostics) .
  4. (F941) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED Turn the ignition on. Using a 12-volt test light connected to ground, check the (F941) Fused Ignition Switch Output (Run-Start) circuit. Does the test light illuminate brightly? Yes Go To 5 . No Repair the open or short in the (F941) Fused Ignition Switch Output (Run-Start) circuit. Perform the ABS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/anti-locktraction-control/#antilock-brake-system-abs-electrical-diagnostics) .
  5. (D65) CAN C BUS (+) CIRCUIT OPEN Turn the ignition off. Disconnect the TIPM C1 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C1 harness connector and the Antilock Brake Module connector. Is resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (D65) CAN C Bus (+) circuit. Perform the ABS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/anti-locktraction-control/#antilock-brake-system-abs-electrical-diagnostics) .
  6. (D64) CAN C BUS (-) CIRCUIT OPEN Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C1 harness connector and the Antilock Brake Module connector. Is resistance below 5.0 Ohms? Yes Replace the Antilock Brake Module in accordance with the Service Information. Refer to «MODULE, ANTI-LOCK BRAKE SYSTEM , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ABS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/anti-locktraction-control/#antilock-brake-system-abs-electrical-diagnostics) . No Repair the open in the (D64) CAN C Bus (-) circuit. Perform the ABS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/anti-locktraction-control/#antilock-brake-system-abs-electrical-diagnostics) .

Scheme 166

Scheme 166: NO RESPONSE FROM ACC (ADAPTIVE CRUISE CONTROL) MODULE

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

Possible Causes
(Z909) GROUND CIRCUIT OPEN
(F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
ADAPTIVE CRUISE CONTROL MODULE/ADAPTIVE SPEED CONTROL SENSOR

Scheme 167

Scheme 167: DIAGNOSTIC TEST

Scheme 168

Scheme 168

Scheme 169

Scheme 169
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN C hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (Z909) GROUND CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Adaptive Cruise Control Module harness connector. Using a 12-volt test light connected to 12-volts, check the (Z909) Ground circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open in the (Z909) Ground circuit. 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) .
  3. CHECK THE (F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT 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 Go To 4 . No Repair the open or short in the (F943) Fused Ignition Switch Output (Run-Start) circuit. 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) .
  4. CHECK THE (D65) AND (D64) CAN C BUS CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the TIPM C1 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C1 harness connector and the Adaptive Cruise Control Module harness connector. Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C1 harness connector and the Adaptive Cruise Control Module harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Adaptive Speed Control Sensor 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 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 Repair the open in the (D65) or (D64) CAN C Bus circuit. 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) .

Scheme 170

Scheme 170: NO RESPONSE FROM AHBM (AUTO HEADLAMP HIGHBEAM CONTROL MODULE)

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

Possible Causes
(F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(Z912) GROUND CIRCUIT OPEN
(D264) AND (D265) CAN INTERIOR BUS (125K) CIRCUITS OPEN
AUTO HEADLAMP HIGHBEAM CONTROL MODULE

Scheme 171

Scheme 171: DIAGNOSTIC TEST

Scheme 172

Scheme 172

Scheme 173

Scheme 173
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Inside Rearview Mirror 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 Go To 3 . No Repair the open or short in the (F943) Fused Ignition Switch Output (Run-Start) circuit. 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) .
  3. CHECK THE (Z912) GROUND CIRCUIT FOR AN OPEN Turn the ignition off. Using a 12-volt test light connected to 12-volts, check the (Z912) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z912) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D264) CAN Interior Bus (-) (125K) circuit between the TIPM C7 harness connector and the Inside Rearview Mirror harness connector. Measure the resistance of the (D265) CAN Interior Bus (+) (125K) circuit between the TIPM C7 harness connector and the Inside Rearview Mirror harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Auto Headlamp Highbeam Control Module (Inside Rearview Mirror) in accordance with the Service Information. Refer to «MIRROR, REARVIEW , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) . 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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 174

Scheme 174: NO RESPONSE FROM AHLM (AUTOMATIC HEADLAMP LEVELING MODULE)

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

Possible Causes
(F921) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(L910) RIGHT HEADLAMP RETURN SIGNAL CIRCUIT OPEN
(D64) AND (D65) CAN C BUS CIRCUITS OPEN
AUTOMATIC HEADLAMP LEVELING MODULE (AHLM)

Note. The Automatic Headlamp Leveling Module (AHLM) is part of the Right Front Lamp Assembly.

Scheme 175

Scheme 175: DIAGNOSTIC TEST

Scheme 176

Scheme 176

Scheme 177

Scheme 177
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (F921) FUSED RUN RELAY OUTPUT CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Right Front Lamp Assembly harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F921) Fused Run Relay Output circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (F921) Fused Run Relay Output circuit. 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) .
  3. CHECK THE (L910) RIGHT HEADLAMP RETURN SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Using a 12-volt test light connected to 12-volts, check the (L910) Right Headlamp Return Signal circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (L910) Right Headlamp Return Signal circuit. 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) .
  4. CHECK THE (D64) AND (D65) CAN C BUS CIRCUITS FOR AN OPEN Disconnect the TIPM C1 harness connector. Measure the resistance of the (D64) CAN C Bus (-) circuit between the Right Front Lamp Assembly harness connector and the TIPM C1 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the Right Front Lamp Assembly harness connector and the TIPM C1 harness connector. Is the resistance below 5.0 Ohms? Yes Replace the Right Front Lamp Unit in accordance with the Service Information. Refer to «UNIT, FRONT LAMP , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/exterior-lights/#lampslighting-exterior-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 Repair the open or high resistance in the (D65) or (D64) CAN C Bus circuit. 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) .

Scheme 178

Scheme 178: NO RESPONSE FROM AMP (AMPLIFIER)

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

Possible Causes
(A116) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z922) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
AMPLIFIER

Scheme 179

Scheme 179: DIAGNOSTIC TEST

Scheme 180

Scheme 180

Scheme 181

Scheme 181
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A116) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Radio Amplifier C2 harness connector. Using a 12-volt test light connected to ground, check the (A116) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A116) Fused B(+) circuit. 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) .
  3. CHECK THE (Z922) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z922) ground circuit. Does the test light illuminate brightly for each circuit? Yes Go To 4 . No Repair the open in the (Z922) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Radio Amplifier C2 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Radio Amplifier C2 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Radio Amplifier in accordance with the Service Information. Refer to «AMPLIFIER , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/entertainment-systems/#audio-and-video-service-information__removal) . 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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 182

Scheme 182: NO RESPONSE FROM ASCM (AIR SUSPENSION CONTROL MODULE)

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

Possible Causes
(A206) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z916) GROUND CIRCUIT OPEN
(F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(D52) CAN C BUS (+) CIRCUIT OPEN
(D51) CAN C BUS (-) CIRCUIT OPEN
AIR SUSPENSION CONTROL MODULE (ASCM)

Scheme 183

Scheme 183: DIAGNOSTIC TEST

Scheme 184

Scheme 184

Scheme 185

Scheme 185

Scheme 186

Scheme 186
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A206) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Air Suspension Control Module C2 harness connector. Using a 12-volt test light connected to ground, check the (A206) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A206) Fused B(+) circuit. 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) .
  3. CHECK THE (Z916) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z916) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z916) Ground circuit. 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) .
  4. CHECK THE (F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT 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 Go To 5 . No Repair the open or short in the (F943) Fused Ignition Switch Output (Run-Start) circuit. 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) .
  5. CHECK THE (D51) AND (D52) CAN C BUS CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the TIPM C7 harness connector. Disconnect the Air Suspension Control Module C1 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the Air Suspension Control Module C1 harness connector. Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the Air Suspension Control Module C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Air Suspension Control Module in accordance with the Service Information. Refer to «MODULE, AIR SUSPENSION CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information__removal) . 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 Repair the open in the (D52) or (D51) CAN C Bus circuit. 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) .

Scheme 187

Scheme 187: NO RESPONSE FROM BSM (BLIND SPOT MODULE)

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

Possible Causes
(F921) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(Z916) GROUND CIRCUIT OPEN
(D264) AND (D265) CAN INTERIOR BUS (125K) CIRCUITS OPEN
BLIND SPOT MODULE

Scheme 188

Scheme 188: DIAGNOSTIC TEST

Scheme 189

Scheme 189

Scheme 190

Scheme 190
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (F921) FUSED RUN RELAY OUTPUT CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Blind Spot Module harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F921) Fused Run Relay Output circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (F921) Fused Run Relay Output circuit. 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) .
  3. CHECK THE (Z916) GROUND CIRCUIT FOR AN OPEN Turn the ignition off. Using a 12-volt test light connected to 12-volts, check the (Z916) Ground circuit. Does the test light illuminate brightly for each circuit? Yes Go To 4 . No Repair the open in the (Z916) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D264) CAN Interior Bus (-) (125K) circuit between the TIPM C7 harness connector and the Blind Spot Module harness connector. Measure the resistance of the (D265) CAN Interior Bus (+) (125K) circuit between the TIPM C7 harness connector and the Blind Spot Module harness connector. Are the resistances below 5.0 Ohms on both circuits? Yes Replace the Blind Spot Module in accordance with the Service Information. Refer to «MODULE, BLIND SPOT , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 191

Scheme 191: NO RESPONSE FROM CCN (CLUSTER)

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

Possible Causes
(A909) (A412) FUSED B(+) CIRCUITS OPEN OR SHORTED
(Z911) (Z912) GROUND CIRCUITS OPEN
(F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
CLUSTER (CCN)

Scheme 192

Scheme 192: DIAGNOSTIC TEST

Scheme 193

Scheme 193

Scheme 194

Scheme 194

Scheme 195

Scheme 195
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A909) AND (A412) FUSED B(+) CIRCUITS FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Cluster C1 and C2 harness connectors. Using a 12-volt test light connected to ground, check the (A909) and (A412) Fused B(+) circuit. Does the test light illuminate brightly for each circuit? Yes Go To 3 . No Repair the open or short in the Fused B(+) circuit. 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) .
  3. CHECK THE (Z911) AND (Z912) GROUND CIRCUITS FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z911) and (Z912) Ground circuits. Does the test light illuminate brightly for each circuit? Yes Go To 4 . No Repair the open in the (Z911) or (Z912) Ground circuit. 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) .
  4. CHECK THE (F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT 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 Go To 5 . No Repair the open or short in the (F943) Fused Ignition Switch Output (Run-Start) circuit. 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) .
  5. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Cluster C1 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Cluster C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Cluster in accordance with the Service Information. Refer to «REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#instrument-cluster-service-information__removal) . 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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 196

Scheme 196: NO RESPONSE FROM DDM (DMLF) (DRIVER DOOR MODULE)

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

Possible Causes
(A215) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z919) OR (Z917) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUITS OPEN
DRIVER DOOR MODULE

Scheme 197

Scheme 197: DIAGNOSTIC TEST

Scheme 198

Scheme 198

Scheme 199

Scheme 199
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A215) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Driver Door Module C3 harness connector. Using a 12-volt test light connected to ground, check the (A215) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A215) Fused B(+) circuit. 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) .
  3. CHECK THE (Z919) OR (Z917) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z919) or (Z917) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z919) or (Z917) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Driver Door Module C3 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Driver Door Module C3 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Driver Door Module in accordance with the Service Information. Refer to «MODULE, DOOR , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 200

Scheme 200: NO RESPONSE FROM DTCM (DRIVETRAIN CONTROL MODULE)

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

Possible Causes
(A959) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z916) GROUND CIRCUIT OPEN
(F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(D52) CAN C BUS (+) CIRCUIT OPEN
(D51) CAN C BUS (-) CIRCUIT OPEN
DRIVETRAIN CONTROL MODULE

Scheme 201

Scheme 201: DIAGNOSTIC TEST

Scheme 202

Scheme 202

Scheme 203

Scheme 203

Scheme 204

Scheme 204
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A959) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Drivetrain Control Module C1 and C2 harness connectors. Using a 12-volt test light connected to ground, check the (A959) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A959) Fused B(+) circuit. Perform the DTCM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#drivetrain-control-module-dtcm-electrical-diagnostics) .
  3. CHECK THE (Z916) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z916) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z916) Ground circuit. Perform the DTCM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#drivetrain-control-module-dtcm-electrical-diagnostics) .
  4. CHECK THE (F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT 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 Go To 5 . No Repair the open or short in the (F943) Fused Ignition Switch Output (Run-Start) circuit. Perform the DTCM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#drivetrain-control-module-dtcm-electrical-diagnostics) .
  5. CHECK THE (D51) AND (D52) CAN C BUS CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the TIPM C7 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the DTCM C1 harness connector. Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the DTCM C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Drivetrain Control Module in accordance with the Service Information. Refer to «MODULE, DRIVETRAIN CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the DTCM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#drivetrain-control-module-dtcm-electrical-diagnostics) . No Repair the open in the (D52) or (D51) CAN C Bus circuit. Perform the DTCM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#drivetrain-control-module-dtcm-electrical-diagnostics) .

Scheme 205

Scheme 205: NO RESPONSE FROM ELSD (ELECTRONIC LIMITED SLIP DIFFERENTIAL)

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

Possible Causes
(A206) OR (A903) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z916) GROUND CIRCUIT OPEN
(F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(D52) CAN C BUS (+) CIRCUIT OPEN
(D51) CAN C BUS (-) CIRCUIT OPEN
ELECTRONIC LIMITED SLIP DIFFERENTIAL (ELSD) MODULE

Scheme 206

Scheme 206: DIAGNOSTIC TEST

Scheme 207

Scheme 207

Scheme 208

Scheme 208

Scheme 209

Scheme 209
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A206) AND (A903) FUSED B(+) CIRCUITS FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Electronic Limited Slip Differential Module C2 harness connector. Using a 12-volt test light connected to ground, check the (A206) and (A903) Fused B(+) circuits. Does the test light illuminate brightly for each circuit? Yes Go To 3 . No Repair the open or short in the (A206) or (A903) Fused B(+) circuit. 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) .
  3. CHECK THE (Z916) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z916) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z916) Ground circuit. 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) .
  4. CHECK THE (F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT 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 Go To 5 . No Repair the open or short in the (F943) Fused Ignition Switch Output (Run-Start) circuit. 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) .
  5. CHECK THE (D51) AND (D52) CAN C BUS CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the TIPM C7 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the Electronic Limited Slip Differential Module C2 harness connector. Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the Electronic Limited Slip Differential Module C2 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Electronic Limited Slip Differential Module in accordance with the Service Information. Refer to «MODULE, ELECTRONIC LIMITED SLIP DIFFERENTIAL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the ELSD VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/differentials-drive-axles/#electronic-limited-slip-differential-elsd-module-electrical-diagnostics) . No Repair the open in the (D52) or (D51) CAN C Bus circuit. 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) .

Scheme 210

Scheme 210: NO RESPONSE FROM EHPS (ELECTRO-HYDRAULIC POWER STEERING) MODULE

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

Possible Causes
(Z906) GROUND CIRCUIT OPEN
(F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
ELECTRO-HYDRAULIC POWER STEERING MODULE

Scheme 211

Scheme 211: DIAGNOSTIC TEST

Scheme 212

Scheme 212

Scheme 213

Scheme 213
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN C hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (Z906) GROUND CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Electro-Hydraulic Power Steering Module C1 harness connector. Using a 12-volt test light connected to 12-volts, check the (Z906) Ground circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open in the (Z906) Ground circuit. Perform the EHPS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/electronic-steering/#electro-hydraulic-power-steering-ehps-module-electrical-diagnostics) .
  3. CHECK THE (F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT Disconnect the Electro-Hydraulic Power Steering Module C2 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 Go To 4 . No Repair the open or short in the (F943) Fused Ignition Switch Output (Run-Start) circuit. Perform the EHPS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/electronic-steering/#electro-hydraulic-power-steering-ehps-module-electrical-diagnostics) .
  4. CHECK THE (D65) AND (D64) CAN C BUS CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the TIPM C1 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C1 harness connector and the Electro-Hydraulic Power Steering Module C2 harness connector. Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C1 harness connector and the Electro-hydraulic Power Steering Module C2 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Electro-Hydraulic Power Steering Assembly in accordance with the Service Information. Refer to «PUMP , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/manual-power-steering/#steering-system) . Perform the EHPS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/electronic-steering/#electro-hydraulic-power-steering-ehps-module-electrical-diagnostics) . No Repair the open in the (D65) or (D64) CAN C Bus circuit. Perform the EHPS VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/electronic-steering/#electro-hydraulic-power-steering-ehps-module-electrical-diagnostics) .

Scheme 214

Scheme 214: NO RESPONSE FROM ESM (ELECTRONIC SHIFT MODULE) (SHIFTER LEVER ASSEMBLY)

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

Possible Causes
(Z911) GROUND CIRCUIT OPEN
(F1) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(D52) CAN C BUS (+) CIRCUIT OPEN
(D51) CAN C BUS (-) CIRCUIT OPEN
SHIFTER ASSEMBLY (ELECTRONIC SHIFT MODULE)

Scheme 215

Scheme 215: DIAGNOSTIC TEST

Scheme 216

Scheme 216

Scheme 217

Scheme 217
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched and partially broken wires and the wiring harness connectors for broken, bent, pushed out and corroded terminals. No Go To 2 .
  2. CHECK THE (Z911) GROUND CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the Shifter Assembly harness connector. Using a 12-volt test light connected to 12-volts, check the (Z911) Ground circuits. Does the test light illuminate brightly for each circuit? Yes Go To 3 . No Repair the open in the (Z911) Ground circuit. Perform the appropriate TRANSMISSION VERIFICATION TEST. For vehicles with NAG1 transmissions, refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) . For vehicles with 545RFE transmissions, refer to «545RFE TRANSMISSION VERIFICATION TEST»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#pre-diagnostic-troubleshooting-procedure-transmission-verification-test-545re-automatic-transmission__545rfe-transmission-verification-test) .
  3. CHECK THE (F1) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition on. Using a 12-volt test light connected to ground, check the (F1) Fused Ignition Switch Output (Run-Start) circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open or short in the (F1) Fused Ignition Switch Output (Run-Start) circuit. Perform the appropriate TRANSMISSION VERIFICATION TEST. For vehicles with NAG1 transmissions, refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) . For vehicles with 545RFE transmissions, refer to «545RFE TRANSMISSION VERIFICATION TEST»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#pre-diagnostic-troubleshooting-procedure-transmission-verification-test-545re-automatic-transmission__545rfe-transmission-verification-test) .
  4. CHECK THE (D52) AND (D51) CAN C BUS CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the TIPM C7 harness connector. Measure the resistance of the (D51) CAN C Bus (-) circuit between the Shifter Assembly harness connector and the TIPM C7 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the Shifter Assembly harness connector and the TIPM C7 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the ESM, which is integral to the Shifter Assembly, in accordance with the Service Information. For vehicles with NAG1 transmissions, refer to «SHIFTER, TRANSMISSION , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#nag1-automatic-transmission-service-information) . For vehicles with 545RFE transmissions, refer to «SHIFTER, TRANSMISSION , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#545rfe-automatic-transmission-service-information) . Perform the appropriate TRANSMISSION VERIFICATION TEST. For vehicles with NAG1 transmissions, refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) . For vehicles with 545RFE transmissions, refer to «545RFE TRANSMISSION VERIFICATION TEST»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#pre-diagnostic-troubleshooting-procedure-transmission-verification-test-545re-automatic-transmission__545rfe-transmission-verification-test) . No Repair the open in the (D52) or (D51) CAN C Bus circuit. Perform the appropriate TRANSMISSION VERIFICATION TEST. For vehicles with NAG1 transmissions, refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) . For vehicles with 545RFE transmissions, refer to «545RFE TRANSMISSION VERIFICATION TEST»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#pre-diagnostic-troubleshooting-procedure-transmission-verification-test-545re-automatic-transmission__545rfe-transmission-verification-test) .

Scheme 218

Scheme 218: NO RESPONSE FROM HFM (HANDS FREE MODULE)

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

Possible Causes
(A413) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z912) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
HANDS FREE MODULE

Scheme 219

Scheme 219: DIAGNOSTIC TEST

Scheme 220

Scheme 220

Scheme 221

Scheme 221
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A413) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Hands Free Module harness connector. Using a 12-volt test light connected to ground, check the (A413) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A413) Fused B(+) circuit. 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) .
  3. CHECK THE (Z912) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z912) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z912) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Hands Free Module harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Hands Free Module harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Hands Free Module in accordance with the Service Information. Refer to «MODULE, HANDS FREE (HFM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#navigationtelecommunication-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 222

Scheme 222: NO RESPONSE FROM HSM (HEATED SEAT MODULE)

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

Possible Causes
(F930) FUSED IGNITION RUN CONTROL OUTPUT CIRCUIT OPEN OR SHORTED
(Z919) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
HEATED SEAT MODULE

Scheme 223

Scheme 223: DIAGNOSTIC TEST

Scheme 224

Scheme 224

Scheme 225

Scheme 225
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (F930) FUSED IGNITION RUN CONTROL OUTPUT CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Heated Seat Module C1 harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F930) Fused Ignition Run Control Output circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (F930) Fused Ignition Run Control Output circuit. 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) .
  3. CHECK THE (Z919) GROUND CIRCUIT FOR AN OPEN Turn the ignition off. Using a 12-volt test light connected to 12-volts, check the (Z919) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z919) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Heated Seat Module C1 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Heated Seat Module C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Heated Seat Module in accordance with the Service Information. Refer to «MODULE, HEATED SEAT , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 226

Scheme 226: NO RESPONSE FROM HVAC (A/C HEATER CONTROL MODULE)

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

Possible Causes
(A417) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z912) GROUND CIRCUIT OPEN
(F921) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(D264) AND (D265) CAN INTERIOR BUS (125K) CIRCUITS OPEN
A/C HEATER CONTROL MODULE (HVAC)

Scheme 227

Scheme 227: DIAGNOSTIC TEST

Scheme 228

Scheme 228

Scheme 229

Scheme 229

Scheme 230

Scheme 230
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A417) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the A/C Heater Control harness connector. Using a 12-volt test light connected to ground, check the (A417) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A417) Fused B(+) circuit. 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) .
  3. CHECK THE (Z912) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z912) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z912) Ground circuit. 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) .
  4. CHECK THE (F921) FUSED RUN RELAY OUTPUT CIRCUIT FOR AN OPEN OR SHORT Turn the ignition on. Using a 12-volt test light connected to ground, check the (F921) Fused Run Relay Output circuit. Does the test light illuminate brightly? Yes Go To 5 . No Repair the open or short in the (F921) Fused Run Relay Output circuit. 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) .
  5. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the A/C Heater Control harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the A/C Heater Control harness connector. Are the resistances below 5.0 Ohms? Yes Replace the A/C Heater Control Module in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/ac-compressor/#heating-air-conditioning-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 231

Scheme 231: NO RESPONSE FROM ITM (INTRUSION TRANSCEIVER MODULE)

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

Possible Causes
(A412) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z924) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
INTRUSION TRANSCEIVER MODULE (ITM)

Scheme 232

Scheme 232: DIAGNOSTIC TEST

Scheme 233

Scheme 233

Scheme 234

Scheme 234
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A412) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Intrusion Transceiver Module harness connector. Using a 12-volt test light connected to ground, check the (A412) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A412) Fused B(+) circuit. 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) .
  3. CHECK THE (Z924) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z924) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z924) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Intrusion Transceiver Module harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Intrusion Transceiver Module harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Intrusion Transceiver Module in accordance with the Service Information. Refer to «MODULE, INTRUSION , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/door-locks-anti-theft-systems/#vehicle-theft-security-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 235

Scheme 235: NO RESPONSE FROM MSMD (MEMORY SEAT MODULE)

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

Possible Causes
(A210) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z916) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
MEMORY SEAT MODULE

Scheme 236

Scheme 236: DIAGNOSTIC TEST

Scheme 237

Scheme 237

Scheme 238

Scheme 238
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A210) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Memory Seat Module C1 harness connector. Using a 12-volt test light connected to ground, check the (A210) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A210) Fused B(+) circuit. 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) .
  3. CHECK THE (Z916) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z916) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z916) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Memory Seat Module C1 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Memory Seat Module C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Refer to «MODULE, MEMORY, SEAT , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 239

Scheme 239: NO RESPONSE FROM ORC (OCCUPANT RESTRAINT CONTROLLER)

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

Possible Causes
(Z913) GROUND CIRCUIT OPEN
(F100) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(F201) FUSED RUN/START RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(D51) CAN C BUS (-) CIRCUIT OPEN
(D52) CAN C BUS (+) CIRCUIT OPEN
OCCUPANT RESTRAINT CONTROLLER (ORC)

Scheme 240

Scheme 240: DIAGNOSTIC TEST

Scheme 241

Scheme 241

Scheme 242

Scheme 242

Scheme 243

Scheme 243
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (Z913) GROUND CIRCUIT FOR AN OPEN WARNING: To avoid possible serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding. Disconnect the Occupant Restraint Controller Module harness connectors. Connect the SRS Load Tool Adapter (special tool #8443-24, 32-Way Adapter) to the ORC connectors. Measure the resistance between ground and the (Z913) Ground circuit. Is the resistance below 5.0 Ohms? Yes Go To 3 . No Repair the open in the (Z913) Ground circuit. Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/airbag/#occupant-restraint-controller-orc-restraints-system-pre-diagnostic-troubleshooting-procedure-intermittent-test-verificat) .
  3. CHECK THE (F100) FUSED RUN RELAY OUTPUT CIRCUIT FOR AN OPEN OR SHORT NOTE: Check the TIPM for any ignition related DTCs before proceeding. If set. Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-dtcs-b10b4-to-b25ae) . WARNING: Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to ground, check the (F100) Fused Run Relay Output circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open or short in the (F100) Fused Run Relay Output circuit. Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/airbag/#occupant-restraint-controller-orc-restraints-system-pre-diagnostic-troubleshooting-procedure-intermittent-test-verificat) .
  4. CHECK THE (F201) FUSED RUN/START RELAY OUTPUT CIRCUIT FOR AN OPEN OR SHORT Using a 12-volt test light connected to ground, check the (F201) Fused Run/Start Relay Output circuit. Does the test light illuminate brightly? Yes Go To 5 . No Repair the open or short in the (F201) Fused Run/Start Relay Output circuit. Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/airbag/#occupant-restraint-controller-orc-restraints-system-pre-diagnostic-troubleshooting-procedure-intermittent-test-verificat) .
  5. CHECK THE (D52) AND (D51) CAN C BUS CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the TIPM C7 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the Occupant Restraint Controller C2 harness connector. Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the Occupant Restraint Controller C2 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Occupant Restraint Controller Module in accordance with the Service Information. Refer to «MODULE, OCCUPANT RESTRAINT CONTROLLER , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/airbag/#restraints-service-information) . Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/airbag/#occupant-restraint-controller-orc-restraints-system-pre-diagnostic-troubleshooting-procedure-intermittent-test-verificat) . No Repair the open in the (D52) or (D51) CAN C Bus circuit. Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/airbag/#occupant-restraint-controller-orc-restraints-system-pre-diagnostic-troubleshooting-procedure-intermittent-test-verificat) .

NO RESPONSE FROM PCM (POWERTRAIN CONTROL MODULE) - DIESEL

For a complete wiring diagram, refer to the Wiring Information .

Possible Causes
POWERTRAIN CONTROL MODULE POWER AND GROUND CIRCUITS
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
POWERTRAIN CONTROL MODULE (PCM)

Scheme 244

Scheme 244: DIAGNOSTIC TEST
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE PCM POWER AND GROUND CIRCUITS Check the PCM power and ground circuits. Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/testing-diagnostics/#driveability-diesel-non-dtc-based-diagnostics) and perform the Checking the PCM Power and Ground Circuits diagnostic procedure. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) . No Go To 3 .
  3. CHECK THE (D64) CAN C BUS (-) AND (D65) CAN C BUS (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the TIPM C1 harness connector. Disconnect the PCM C1 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C1 harness connector and the PCM C1 harness connector. Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C1 harness connector and the PCM C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) . No Repair the open in the (D64) CAN C Bus (-) or (D65) CAN C Bus (+) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) .

NO RESPONSE FROM PCM (POWERTRAIN CONTROL MODULE) (NGC)

3.6L

Scheme 245

Scheme 245: NO RESPONSE FROM PCM (POWERTRAIN CONTROL MODULE) (NGC)

5.7L

Scheme 246

Scheme 246

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

Possible Causes
(A209) FUSED B(+) CIRCUITS OPEN OR SHORTED
(Z903) GROUND CIRCUITS OPEN
(F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(F1) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED (5.7L)
(F342) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
POWERTRAIN CONTROL MODULE (PCM)

Scheme 247

Scheme 247: DIAGNOSTIC TEST

Scheme 248

Scheme 248

Scheme 249

Scheme 249

Scheme 250

Scheme 250

Scheme 251

Scheme 251

Scheme 252

Scheme 252

Scheme 253

Scheme 253
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A209) FUSED B(+) CIRCUITS FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the PCM C1 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Using a 12-volt test light connected to ground, check the (A209) Fused B(+) circuits. Does the test light illuminate brightly for each circuit? Yes Go To 3 . No Repair the open or short in the (A209) Fused B(+) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) .
  3. CHECK THE (Z903) GROUND CIRCUITS FOR AN OPEN Disconnect the PCM (5.7L) C4 harness connector. Using a 12-volt test light connected to 12-volts, check the (Z903) Ground circuits in PCM C1 harness connector. Using a 12-volt test light connected to 12-volts, check the (Z903) Ground circuits in PCM (5.7L) C4 harness connector. Does the test light illuminate brightly for each circuit? Yes Go To 4 . No Repair the open in the (Z903) Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) .
  4. CHECK THE (F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition on. Using a 12-volt test light connected to ground, check the (F202) Ignition Switch Output (Run-Start) circuit. Does the test light illuminate brightly? Yes For 3.6L vehicles, Go To 6 . For all other vehicles, Go To 5 . No Repair the open or short in the (F202) Ignition Switch Output (Run-Start) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) .
  5. CHECK THE (F1) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT Using a 12-volt test light connected to ground, check the (F1) Fused Ignition Switch Output (Run-Start) circuit. Does the test light illuminate brightly? Yes Go To 6 . No Repair the open or short in the (F1) Fused Ignition Switch Output (Run-Start) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) .
  6. CHECK THE (F342) FUSED MAIN RELAY OUTPUT CIRCUIT FOR AN OPEN OR SHORT Disconnect the PCM C3 harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F342) Fused Main Relay Output circuits. Does the test light illuminate brightly for each circuit? Yes Go To 7 . No Repair the open or short in the (F342) Fused Main Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) .
  7. CHECK THE (D65) CAN C BUS (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the TIPM C1 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C1 harness connector and the PCM C1 connector. Is resistance below 5.0 Ohms? Yes Go To 8 . No Repair the open in the (D65) CAN C Bus (+) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) .
  8. CHECK THE (D64) CAN C BUS (-) CIRCUIT FOR AN OPEN Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C1 harness connector and the PCM C1 connector. Is resistance below 5.0 Ohms? Yes Replace the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) . No Repair the open in the (D64) CAN C Bus (-) circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST - 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 «PCM VERIFICATION TEST - 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) .

Scheme 254

Scheme 254: NO RESPONSE FROM PDM (DMRF) (PASSENGER DOOR MODULE)

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

Possible Causes
(A214) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z916) OR (Z919) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
PASSENGER DOOR MODULE

Scheme 255

Scheme 255: DIAGNOSTIC TEST

Scheme 256

Scheme 256

Scheme 257

Scheme 257
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A214) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Passenger Door Module C3 harness connector. Using a 12-volt test light connected to ground, check the (A214) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A214) Fused B(+) circuit. 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) .
  3. CHECK THE (Z916) OR (Z919) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z916) or (Z919) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z916) or (Z919) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Passenger Door Module C3 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Passenger Door Module C3 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Passenger Door Module in accordance with the Service Information. Refer to «MODULE, DOOR , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 258

Scheme 258: NO RESPONSE FROM PEM (PASSIVE ENTRY MODULE)

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

Note. The Keyless Go Security Module feature is a function of the Passive Entry Module (PEM). The diagnostic procedures for the Keyless Go Security Module are performed on the PEM.

Possible Causes
(A106) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z912) GROUND CIRCUIT OPEN
(D52) AND (D51) CAN C BUS CIRCUITS OPEN
PASSIVE ENTRY MODULE (PEM)

Scheme 259

Scheme 259: DIAGNOSTIC TEST

Scheme 260

Scheme 260

Scheme 261

Scheme 261
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A106) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the PEM C1 harness connectors. Using a 12-volt test light connected to ground, check the (A106) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A106) Fused B(+) circuit. 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) .
  3. CHECK THE (Z912) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z912) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z912) Ground circuit. 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) .
  4. CHECK THE (D52) AND (D51) CAN C BUS CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D51) CAN C Bus (-) circuit between the PEM C1 harness connector and the TIPM C7 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the PEM C1 harness connector and the TIPM C7 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the PEM in accordance with the Service Information. Refer to «MODULE, PASSIVE ENTRY , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D52) or (D51) CAN C Bus circuit. 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) .

Scheme 262

Scheme 262: NO RESPONSE FROM PLGM (POWER LIFTGATE MODULE)

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

Possible Causes
(A115) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z916) GROUND CIRCUIT OPEN
(D265) OR (D264) CAN INTERIOR BUS (125K) CIRCUIT OPEN
POWER LIFTGATE MODULE

Scheme 263

Scheme 263: DIAGNOSTIC TEST

Scheme 264

Scheme 264

Scheme 265

Scheme 265
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A115) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Power Liftgate Module C2 harness connector. Using a 12-volt test light connected to ground, check the (A115) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A115) Fused B(+) circuit. 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) .
  3. CHECK THE (Z916) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z916) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z916) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the Power Liftgate Module C2 harness connector and the TIPM C7 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the Power Liftgate Module C2 harness connector and the TIPM C7 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Power Liftgate Control Module in accordance with the Service Information. Refer to «MODULE, POWER LIFTGATE CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 266

Scheme 266: NO RESPONSE FROM PTS (PARK ASSIST MODULE)

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

Possible Causes
(F921) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(Z924) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
PARK ASSIST MODULE

Scheme 267

Scheme 267: DIAGNOSTIC TEST

Scheme 268

Scheme 268

Scheme 269

Scheme 269
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (F921) FUSED RUN RELAY OUTPUT CIRCUIT FOR AN OPEN OR SHORT Disconnect the Park Assist Module C1 harness connector. Using a 12-volt test light connected to ground, check the (F921) Fused Run Relay Output circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (F921) Fused Run Relay Output circuit. 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) .
  3. CHECK THE (Z924) GROUND CIRCUIT FOR AN OPEN Turn the ignition off. Using a 12-volt test light connected to 12-volts, check the (Z924) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z924) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Park Assist Module C1 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Park Assist Module C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Park Assist Module in accordance with the Service Information. Refer to «MODULE, PARK ASSIST , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 270

Scheme 270: NO RESPONSE FROM RADIO

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

Possible Causes
(A116) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z912) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
RADIO

Scheme 271

Scheme 271: DIAGNOSTIC TEST

Scheme 272

Scheme 272

Scheme 273

Scheme 273
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A116) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Radio C2 harness connector. Using a 12-volt test light connected to ground, check the (A116) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A116) Fused B(+) circuit. 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) .
  3. CHECK THE (Z912) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z912) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z912) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Radio C2 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Radio C2 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Radio in accordance with the Service Information. Refer to «RADIO , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/entertainment-systems/#audio-and-video-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 274

Scheme 274: NO RESPONSE FROM SDARV (SATELLITE VIDEO RECEIVER)

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

Possible Causes
(A413) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z812) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
SATELLITE VIDEO MODULE

Scheme 275

Scheme 275: DIAGNOSTIC TEST

Scheme 276

Scheme 276

Scheme 277

Scheme 277
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A413) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Satellite Video Module C1 harness connector. Using a 12-volt test light connected to ground, check the (A413) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A413) Fused B(+) circuit. 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) .
  3. CHECK THE (Z812) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z812) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z812) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Satellite Video Module C1 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Satellite Video Module C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Satellite Video Module in accordance with the Service Information. Refer to «MODULE, SATELLITE VIDEO , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/entertainment-systems/#audio-and-video-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 278

Scheme 278: NO RESPONSE FROM THE STEERING ANGLE SENSOR (SAS)

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

Possible Causes
(A909) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z912) GROUND CIRCUIT OPEN
(D51) CAN C BUS (-) CIRCUIT OPEN
(D52) CAN C BUS (+) CIRCUIT OPEN
STEERING CONTROL MODULE/STEERING ANGLE SENSOR

Scheme 279

Scheme 279: DIAGNOSTIC TEST

Scheme 280

Scheme 280

Scheme 281

Scheme 281
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A909) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT 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. Disconnect the Steering Control Module C1 harness connector. WARNING: Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Turn the ignition off. Using a 12-volt test light connected to ground, check the (A909) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open in the (A909) Fused B(+) circuit. 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) .
  3. CHECK THE (Z912) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z912) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z912) Ground circuit. 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) .
  4. CHECK THE (D51) AND (D52) CAN C BUS CIRCUITS FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the Steering Control Module C1 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the Steering Control Module C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Steering Control Module in accordance with the Service Information. Refer to «MODULE, STEERING COLUMN , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D51) or (D52) CAN C Bus circuit. 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) .

Scheme 282

Scheme 282: NO RESPONSE FROM TCM (TRANSMISSION CONTROL MODULE) - NAG1

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

Possible Causes
(F202) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(Z909) GROUND CIRCUIT OPEN
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
TRANSMISSION CONTROL MODULE (TCM)

Scheme 283

Scheme 283: DIAGNOSTIC TEST

Scheme 284

Scheme 284

Scheme 285

Scheme 285
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (F202) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the TCM C1 harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F202) Fused Ignition Switch Output (Run-Start) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (F202) Fused Ignition Switch Output (Run-Start) circuit. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) .
  3. CHECK THE (Z909) GROUND CIRCUIT FOR AN OPEN Turn the ignition off. Using a 12-volt test light connected to 12-volts, check the (Z909) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z909) Ground circuit. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) .
  4. CHECK THE (D64) AND (D65) CAN C BUS CIRCUITS FOR AN OPEN Disconnect the TIPM C1 harness connector. Disconnect the TCM C2 harness connector. Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C1 harness connector and the TCM C2 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C1 harness connector and the TCM C2 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Transmission Control Module in accordance with the Service Information. Refer to «MODULE, TRANSMISSION CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) . No Repair the open in the (D64) or (D65) CAN C Bus circuit. Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) .

NO RESPONSE FROM TCM (POWERTRAIN CONTROL MODULE) - NGC

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

Possible Causes
(A209) FUSED B(+) CIRCUITS OPEN OR SHORTED
(Z903) GROUND CIRCUITS OPEN
(F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(F1) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(F342) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
POWERTRAIN CONTROL MODULE (PCM)

Scheme 286

Scheme 286: DIAGNOSTIC TEST
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK FOR LOSS OF COMMUNICATION WITH PCM With the scan tool, read the active DTCs. Does the scan tool display U0100-LOST COMMUNICATION WITH ECM/PCM? Yes 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 PCM diagnostic procedure. No Go To 3 .
  3. CHECK THE (Z903) GROUND CIRCUITS FOR AN OPEN Turn the ignition off. Disconnect the PCM C4 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis. Using a 12-volt test light connected to 12-volts, check the (Z903) Ground circuits. Does the test light illuminate brightly for each circuit? Yes Replace the Powertrain Control Module in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) . Perform the appropriate TRANSMISSION VERIFICATION TEST. For vehicles with NAG1 transmissions, refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) . For vehicles with 545RFE transmissions, refer to «545RFE TRANSMISSION VERIFICATION TEST»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#pre-diagnostic-troubleshooting-procedure-transmission-verification-test-545re-automatic-transmission__545rfe-transmission-verification-test) . No Repair the open in the (Z903) Ground circuit. Perform the appropriate TRANSMISSION VERIFICATION TEST. For vehicles with NAG1 transmissions, refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#transmission-control-module-tcm-electrical-diagnostics) . For vehicles with 545RFE transmissions, refer to «545RFE TRANSMISSION VERIFICATION TEST»(/jeep/grand-cherokee/wk2-2010-2013/remont/automatic-trans/#pre-diagnostic-troubleshooting-procedure-transmission-verification-test-545re-automatic-transmission__545rfe-transmission-verification-test) .

NO RESPONSE FROM TIPM (TOTALLY INTEGRATED POWER MODULE)

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

Possible Causes
FUSED B(+) CIRCUITS OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUITS OPEN
GROUND CIRCUITS OPEN
DIAGNOSTIC CAN C CIRCUITS OPEN
DIAGNOSTIC CAN C CIRCUITS SHORTED TO GROUND
DIAGNOSTIC CAN C CIRCUITS SHORTED TOGETHER
TOTALLY INTEGRATED POWER MODULE (TIPM)

DIAGNOSTIC TEST

  1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. NOTE: Make sure the scan tool is updated to the latest software. NOTE: If the scan tool displays any error messages involving the Diagnostic CAN C circuits, diagnose and repair the error message before proceeding. Refer to the «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) . With the scan tool, attempt to communicate with the TIPM. Does the scan tool communicate with the TIPM? Yes The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals. No Go To 2 .
  2. FUSED B(+) CIRCUITS OPEN AT TIPM Disconnect the scan tool from the DLC. Using a 12-volt test light connected to ground, and using the wiring diagram as a guide, check all Fused B(+) circuits at the TIPM. Does the test light illuminate brightly for each circuit? Yes Go To 3 . No Repair the open or short in the Fused B(+) circuit. 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) .
  3. FUSED IGNITION SWITCH OUTPUT CIRCUITS OPEN AT TIPM Turn the ignition on. Using a 12-volt test light connected to ground, and using the wiring diagram as a guide, check each Fused Ignition Switch Output circuit at the TIPM. Does the test light illuminate brightly for each circuit? Yes Go To 4 . No Repair the open in the Fused Ignition Switch Output circuit. 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) .
  4. GROUND CIRCUITS OPEN AT TIPM Turn the ignition off. Using a 12-volt test light connected to 12-volts, and using the wiring diagram as a guide, check all ground circuits at the TIPM. Does the test light illuminate brightly on each circuit? Yes Go To 5 . No Repair the open in the ground circuit that did not light the test light. 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) .
  5. CHECK THE (D72) DIAGNOSTIC CAN C (+) CIRCUIT FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D72) Diagnostic CAN C (+) circuit between the TIPM C7 harness connector and the DLC. Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the open in the (D72) Diagnostic CAN C (+) circuit. 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) .
  6. CHECK THE (D71) DIAGNOSTIC CAN C (-) CIRCUIT FOR AN OPEN Measure the resistance of the (D71) Diagnostic CAN C (-) circuit between the TIPM C7 harness connector and the DLC. Is the resistance below 5.0 Ohms? Yes Go To 7 . No Repair the open in the (D71) Diagnostic CAN C (-) circuit. 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) .
  7. CHECK THE DIAGNOSTIC CAN C CIRCUITS FOR A SHORT TOGETHER Measure the resistance between the (D72) Diagnostic CAN C (+) circuit and the (D71) Diagnostic CAN C (-) circuit at the TIPM C7 harness connector. Is the resistance above 10k Ohms? Yes Replace the Totally Integrated Power Module in accordance with the Service Information. Refer to «MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the short between the (D72) Diagnostic CAN C (+) circuit and the (D71) Diagnostic CAN C (-) circuit. 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) .

Scheme 287

Scheme 287: NO RESPONSE FROM TPM (TIRE PRESSURE MONITORING) MODULE

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

Possible Causes
(A27) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z924) GROUND CIRCUIT OPEN
(D52) CAN C BUS (+) CIRCUIT OPEN
(D51) CAN C BUS (-) CIRCUIT OPEN
TIRE PRESSURE MONITORING (TPM) MODULE

Scheme 288

Scheme 288: DIAGNOSTIC TEST

Scheme 289

Scheme 289

Scheme 290

Scheme 290

Scheme 291

Scheme 291
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A27) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Tire Pressure Module harness connector. Using a 12-volt test light connected to ground, check the (A27) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A27) Fused B(+) circuit. Perform the TPM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/wheel-tire-system/#tire-pressure-module-tpm-electrical-diagnostics) .
  3. CHECK THE (Z924) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z924) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z924) Ground circuit. Perform the TPM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/wheel-tire-system/#tire-pressure-module-tpm-electrical-diagnostics) .
  4. CHECK THE (D52) CAN C BUS (+) CIRCUIT FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the Tire Pressure Module harness connector. Is resistance below 5.0 Ohms? Yes Go To 5 . No Repair the open in the (D52) CAN C Bus (+) circuit. Perform the TPM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/wheel-tire-system/#tire-pressure-module-tpm-electrical-diagnostics) .
  5. CHECK THE (D51) CAN C BUS (-) CIRCUIT FOR AN OPEN Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the Tire Pressure Module harness connector. Is resistance below 5.0 Ohms? Yes Replace the TPM module in accordance with the Service Information. Refer to «MODULE, TIRE PRESSURE MONITORING (TPM) , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/wheel-tire-system/#tires-wheels-service-information) . Perform the TPM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/wheel-tire-system/#tire-pressure-module-tpm-electrical-diagnostics) . No Repair the open in the (D51) CAN C Bus (-) circuit. Perform the TPM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/wheel-tire-system/#tire-pressure-module-tpm-electrical-diagnostics) .

Scheme 292

Scheme 292: NO RESPONSE FROM VES3 (VIDEO SCREEN MODULE)

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

Possible Causes
(A413) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z921) GROUND CIRCUIT OPEN
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
VIDEO SCREEN MODULE

Scheme 293

Scheme 293: DIAGNOSTIC TEST

Scheme 294

Scheme 294

Scheme 295

Scheme 295
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A413) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Video Screen Module C1 harness connector. Using a 12-volt test light connected to ground, check the (A413) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A413) Fused B(+) circuit. 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) .
  3. CHECK THE (Z921) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z921) Ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z921) Ground circuit. 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) .
  4. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Video Screen Module C1 harness connector. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Video Screen Module C1 harness connector. Are the resistances below 5.0 Ohms? Yes Replace the Video Screen Module in accordance with the Service Information. Refer to «MONITOR, MEDIA SYSTEM , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/entertainment-systems/#audio-and-video-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 Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit. 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) .

Scheme 296

Scheme 296: NO RESPONSE FROM WIN (WIRELESS IGNITION NODE)

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

Possible Causes
(A106) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z912) GROUND CIRCUIT OPEN
(D51) CAN C BUS (-) CIRCUIT OPEN
(D52) CAN C BUS (+) CIRCUIT OPEN
WIRELESS IGNITION NODE (WIN)

Scheme 297

Scheme 297: DIAGNOSTIC TEST

Scheme 298

Scheme 298

Scheme 299

Scheme 299

Scheme 300

Scheme 300
  1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, read the module status. NOTE: Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding. Does the scan tool indicate that the module is active on the bus? Yes The no response condition is 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. No Go To 2 .
  2. CHECK THE (A106) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT Turn the ignition off. Disconnect the Wireless Ignition Node harness connector. Using a 12-volt test light connected to ground, check the (A106) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To 3 . No Repair the open or short in the (A106) Fused B(+) circuit. Perform the WIN VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/door-locks-anti-theft-systems/#wireless-ignition-node-win-electrical-diagnostics) .
  3. CHECK THE (Z912) GROUND CIRCUIT FOR AN OPEN Using a 12-volt test light connected to 12-volts, check the (Z912) ground circuit. Does the test light illuminate brightly? Yes Go To 4 . No Repair the open in the (Z912) Ground circuit. Perform the WIN VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/door-locks-anti-theft-systems/#wireless-ignition-node-win-electrical-diagnostics) .
  4. CHECK THE (D52) CAN C BUS (+) CIRCUIT FOR AN OPEN Disconnect the TIPM C7 harness connector. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the Wireless Ignition Node harness connector. Is resistance below 5.0 Ohms? Yes Go To 5 . No Repair the open in the (D52) CAN C Bus (+) circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) .
  5. CHECK THE (D51) CAN C BUS (-) CIRCUIT FOR AN OPEN Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the Wireless Ignition Node harness connector. Is resistance below 5.0 Ohms? Yes Replace the Wireless Ignition Node in accordance with the Service Information. Refer to «RECEIVER, WIRELESS IGNITION NODE , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-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 Repair the open in the (D51) CAN C Bus (-) circuit. 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) .

Scheme 301

Scheme 301: STORED LOST COMMUNICATION DTCS

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

Bus messages not received for approximately two to five seconds.

Possible Causes
CAN C BUS CIRCUITS OPEN OR SHORT
CAN C INTERIOR BUS CIRCUITS OPEN OR SHORT
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
TIPM NOT CONFIGURED CORRECTLY
POWER OR GROUND FROM THE REPORTING MODULE
MODULE THAT SET THIS DTC
PREVIOUS SERVICE PERFORMED WITHIN THE LAST 100 KEY CYCLES (FUSE/RELAYS REMOVED, WIRING SERVICE, BATTERY DISCONNECT)
LOW BATTERY/JUMP START CONDITION
IOD FUSE WAS REMOVED DURING SHIPPING
CHECK FOR RELATED TSBS
  1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS STORED NOTE: Stored faults may indicate a customer perceived intermittent condition. NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. Turn the ignition on. With the scan tool, read stored DTCs. Is this DTC stored? Yes Go To 2 . No Go to the appropriate Electrical Diagnostic Information and perform the appropriate diagnostic procedure.
  2. CHECK THE ENVIRONMENTAL DATA With the scan tool, read the loss of communication environmental data. Does the loss of communication environmental odometer data match up to any of the previous service procedures listed in the possible causes or are there any stored CAN C hardware electrical, battery, ignition voltage, VIN missing/mismatch, or TIPM configuration DTCs present with matching environmental data? Yes These DTCs may have been the result of other service procedures performed. Clear the DTCs. 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 Go To 3 .
  3. VERIFY INTERMITTENT LOST COMMUNICATION DTC - WIRING CONCERNS With the scan tool, select Network View and select Advanced. Is there more than one ECU with stored DTCs "Logged Against" the module and one or more lost communication DTCs stored in the offending module? Yes Verify if the vehicle was recently in for this type of service. Otherwise, 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. Repair as necessary. No Go To 4 .
  4. VERIFY INTERMITTENT LOST COMMUNICATION DTC - OFFENDING MODULE With the scan tool, select Network View and select Advanced. Is there more than one ECU with stored DTCs "Logged Against" the module and NO lost communication DTCs stored in the offending module? Yes Check for a TSB related to this offending module. No Go To 5 .
  5. VERIFY INTERMITTENT LOST COMMUNICATION DTC - REPORTING MODULE With the scan tool, select Network View and select Advanced. Is there ONLY ONE ECU with stored DTCs "Logged Against" the module? Yes Check for a TSB related to the module that set this DTC. No Verify if the vehicle was recently in for this type of service. Otherwise, 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. Repair as necessary.

See also:
STANDARD PROCEDURE
MODULE, TOTALLY INTEGRATED POWER (TIPM) , REMOVAL
STANDARD PROCEDURE
MIRROR, REARVIEW , REMOVAL
UNIT, FRONT LAMP , REMOVAL
AMPLIFIER , REMOVAL
MODULE, AIR SUSPENSION CONTROL , REMOVAL
REMOVAL
STANDARD PROCEDURE
STANDARD PROCEDURE
STANDARD PROCEDURE
PUMP , REMOVAL
STANDARD PROCEDURE
545RFE TRANSMISSION VERIFICATION TEST
SHIFTER, TRANSMISSION , REMOVAL
SHIFTER, TRANSMISSION , REMOVAL
MODULE, HANDS FREE (HFM) , REMOVAL
CONTROL, A/C AND HEATER , REMOVAL
MODULE, INTRUSION , REMOVAL
STANDARD PROCEDURE
DIAGNOSIS AND TESTING
MODULE, OCCUPANT RESTRAINT CONTROLLER , REMOVAL
DIAGNOSIS AND TESTING
POWERTRAIN VERIFICATION TEST - NGC
PCM VERIFICATION TEST - 3.0L DIESEL
RADIO , REMOVAL
DIAGNOSTIC CODE INDEX - 3.0L DIESEL
DIAGNOSTIC CODE INDEX - NGC
STANDARD PROCEDURE
MODULE, TIRE PRESSURE MONITORING (TPM) , REMOVAL
STANDARD PROCEDURE
DIAGNOSIS AND TESTING