For a complete wiring diagram Refer to Section 8W.Possible Causes(A412) FUSED B(+) CIRCUIT OPEN OR SHORTED(Z914) GROUND CIRCUIT OPEN(F20) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN OR SHORTED(D65) CAN C BUS (+) CIRCUIT OPEN(D64) CAN C BUS (-) CIRCUIT OPENSENTRY KEY REMOTE ENTRY MODULE1. TEST FOR INTERMITTENT CONDITIONTurn the ignition on.Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.With the scan tool, select ECU View.A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.Does the scan tool display a red X next to the module?YesGo To 2 NoThe 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.2. (A412) FUSED B(+) CIRCUIT OPEN OR SHORTED

Turn the ignition off.Disconnect the Sentry Key Remote Entry Module harness connector.Using a 12-volt test light connected to ground, check the (A412) Fused B(+) circuit.Does the test light illuminate brightly?YesGo To 3NoRepair the (A412) Fused B(+) circuit for an open or short.Perform SKREEM VERIFICATION TEST.3. (Z914) GROUND CIRCUIT OPEN

Using a 12-volt test light connected to 12-volts, check the (Z914) ground circuit.Does the test light illuminate brightly?YesGo To 4NoRepair the (Z914) ground circuit for an open.Perform SKREEM VERIFICATION TEST.4. (F20) 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 (F20) Fused Ignition Switch Output (Run/Start) circuit.Does the test light illuminate brightly?YesGo To 5NoRepair the (F20) Fused Ignition Switch Output (Run/Start) circuit for an open or short.Perform SKREEM VERIFICATION TEST.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 Sentry Key Remote Entry Module connector.Is resistance below 5.0 ohms?YesGo To 6NoRepair the (D65) CAN C Bus (+) circuit for an open.Perform the SKREEM VERIFICATION TEST.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 Sentry Key Remote Entry Module connector.Is resistance below 5.0 ohms?YesReplace the Sentry Key Remote Entry Module in accordance with the service information.Perform the SKREEM VERIFICATION TEST.NoRepair the (D64) CAN C Bus (-) circuit for an open.Perform the SKREEM VERIFICATION TEST.