Contents Wiring diagrams Section: Communication - Non-Dtc Based Diagnostics All sections

POSSIBLE CAUSES Dodge Challenger III facelift

Communication - Non-Dtc Based Diagnostics 12 illustrations ~1864 words

POSSIBLE CAUSES

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

Scheme 40

Scheme 40: DIAGNOSTIC TEST

Scheme 41

Scheme 41
  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. Using the scan tool, record the error message. Disconnect the scan tool from the Data Link Connector (DLC). Cycle the ignition from on to off three times. 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 diagram/schematic as a guide, inspect the wiring and connectors.
  2. (D72) DIAGNOSTIC CAN C (+) CIRCUIT OPEN Turn the ignition off. Disconnect the TIPM C6 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 connector and the DLC. Is the resistance below 5.0 Ohms? Yes Go To 3 . No Repair the (D72) Diagnostic CAN C (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) .
  3. (D71) DIAGNOSTIC CAN C (-) CIRCUIT OPEN Measure the resistance of the (D71) Diagnostic CAN C (-) circuit between the TIPM 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 Totally Integrated Power Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) . No Repair the (D71) Diagnostic CAN C (-) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) .

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

The scan tool detects 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

Scheme 42

Scheme 42: 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. Using the scan tool, record the error message. Disconnect the scan tool from the Data Link Connector (DLC). Cycle the ignition from on to off three times. 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 diagram/schematic as a guide, inspect the wiring and connectors.
  2. (D71) DIAGNOSTIC CAN C (-) CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C6 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 (D71) Diagnostic CAN C (-) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) . No Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Totally Integrated Power Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) .

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

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

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

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

The scan tool detects 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

Scheme 43

Scheme 43: 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. Using the scan tool, record the error message. Disconnect the scan tool from the Data Link Connector (DLC). Cycle the ignition from on to off three times. 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 diagram/schematic as a guide, inspect the wiring and connectors.
  2. DIAGNOSTIC CAN C CIRCUITS SHORTED TO VOLTAGE Turn the ignition off. Disconnect the TIPM C6 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 Diagnostic CAN C circuits for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) . No Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Totally Integrated Power Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) .

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

The scan tool detects 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

Scheme 44

Scheme 44: 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. Using the scan tool, record the error message. Disconnect the scan tool from the Data Link Connector (DLC). Cycle the ignition from on to off three times. 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 diagram/schematic as a guide, inspect the wiring and connectors.
  2. (D72) DIAGNOSTIC CAN C (+) CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C6 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 (D72) Diagnostic CAN C (+) circuit for a short to ground. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) . No Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Totally Integrated Power Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) .

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

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

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

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

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

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

Scheme 45

Scheme 45: 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. Using the scan tool, record the error message. Disconnect the scan tool from the Data Link Connector (DLC). Cycle the ignition from on to off three times. 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 diagram/schematic as a guide, inspect the wiring and connectors.
  2. (D72) DIAGNOSTIC CAN C (+) CIRCUIT SHORTED TO (D71) DIAGNOSTIC CAN C (-) CIRCUIT Turn the ignition off. Disconnect the TIPM C6 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 (D72) Diagnostic CAN C (+) circuit for a short to the (D71) Diagnostic CAN C (-) circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) . No Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Totally Integrated Power Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-489354-S40173642412012072600000) .

Scheme 46

Scheme 46: 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
(Z931) GROUND CIRCUITS OPEN
(F202) FUSED IGNITION RUN-START OUTPUT CIRCUIT OPEN OR SHORTED
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
ANTILOCK BRAKE SYSTEM (ABS) MODULE

Scheme 47

Scheme 47: DIAGNOSTIC TEST

Scheme 48

Scheme 48

Scheme 49

Scheme 49

Scheme 50

Scheme 50

Scheme 51

Scheme 51
  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. (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 each (A107) and (A111) Fused B(+) circuit. Does the test light illuminate brightly for each circuit? Yes Go To 3 . No Repair the Fused B(+) circuit for an open or short. Perform the ABS VERIFICATION TEST. Refer to «ABS VERIFICATION TEST»(ref-489362-S14086474312012072600000) or «ABS VERIFICATION TEST»(ref-489363-S19403683272012072600000) .
  3. (Z931) GROUND CIRCUITS OPEN Using a 12-volt test light connected to 12-volts, check each (Z931) Ground circuit. Does the test light illuminate brightly for each circuit? Yes Go To 4 . No Repair the (Z931) ground circuit for an open. Perform the ABS VERIFICATION TEST. Refer to «ABS VERIFICATION TEST»(ref-489362-S14086474312012072600000) or «ABS VERIFICATION TEST»(ref-489363-S19403683272012072600000) .
  4. (F202) 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 (F202) Fused Ignition Switch Output (Run-Start) circuit. Does the test light illuminate brightly? Yes Go To 5 . No Repair the (F202) Fused Ignition Switch Output (Run-Start) circuit for an open or short. Perform the ABS VERIFICATION TEST. Refer to «ABS VERIFICATION TEST»(ref-489362-S14086474312012072600000) or «ABS VERIFICATION TEST»(ref-489363-S19403683272012072600000) .
  5. (D65) CAN C BUS (+) CIRCUIT OPEN Turn the ignition off. Disconnect the TIPM C6 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C6 harness connector and the Antilock Brake Module harness connector. Is resistance below 5.0 Ohms? Yes Go To 6 . No Repair the (D65) CAN C Bus (+) circuit for an open. Perform the ABS VERIFICATION TEST. Refer to «ABS VERIFICATION TEST»(ref-489362-S14086474312012072600000) or «ABS VERIFICATION TEST»(ref-489363-S19403683272012072600000) .
  6. (D64) CAN C BUS (-) CIRCUIT OPEN Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C6 harness connector and the Antilock Brake Module harness connector. Is resistance below 5.0 ohms? Yes Replace the Antilock Brake Module in accordance with the Service Information. Perform the ABS VERIFICATION TEST. Refer to «ABS VERIFICATION TEST»(ref-489362-S14086474312012072600000) or «ABS VERIFICATION TEST»(ref-489363-S19403683272012072600000) . No Repair the (D64) CAN C Bus (-) circuit for an open. Perform the ABS VERIFICATION TEST. Refer to «ABS VERIFICATION TEST»(ref-489362-S14086474312012072600000) or «ABS VERIFICATION TEST»(ref-489363-S19403683272012072600000) .