Hands Free Module (Hfm) - Electrical Diagnostics: Other Dodge Journey I

Monitor Conditions

1. When Monitored: With the ignition on.

Set Conditions

1. Set Condition: The Hands Free Phone Module (HFM) detects the Voice Recognition Switch active for greater than 20 seconds.

Possible Causes

1. When Monitored: With the ignition on.

1. Set Condition: The Hands Free Phone Module (HFM) detects the Phone Switch active for greater than 20 seconds.

1. When Monitored: With the ignition on.

1. Set Condition: The Hands Free Module (HFM) detects a short to ground or open on the (X712) Microphone 1 IN (+) circuit.

Scheme 341

Scheme 342

Scheme 343

1. CHECK FOR ACTIVE DTC NOTE: Verify the connection of the Rearview Mirror harness connector. Turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go to step 2 No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. INSIDE REARVIEW MIRROR Turn the ignition off. Disconnect the Inside Rearview Mirror harness connector. Connect a jumper wire between the (X793) Microphone Feed and the (X712) Microphone 1 IN (+) circuits. Turn the ignition on. With the scan tool, read the DTCs. Does the scan tool display this DTC as active? Yes Go to step 3 No Replace the Inside Rearview Mirror in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .
3. (X712) MICROPHONE 1 IN (+) CIRCUIT OPEN Turn the ignition off. Disconnect the Hands Free Module harness connector. Measure the resistance of the (X712) Microphone 1 IN (+) circuit between the Inside Rearview Mirror and Hands Free Module harness connectors. Is the resistance above 10K ohms? Yes Repair the (X712) Microphone 1 IN (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Go to step 4
4. (X712) MICROPHONE 1 IN (+) CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (X712) Microphone 1 IN (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X712) Microphone 1 IN (+) circuit for short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Replace the Hands Free Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .

1. When Monitored: With the ignition on.

1. Set Condition: The Hands Free Module detects a short to voltage on the (X712) Microphone 1 IN (+) circuit.

Scheme 344

1. CHECK FOR ACTIVE DTC NOTE: Verify the connection of the Rearview Mirror harness connector. Turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go to step 2 No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. INSIDE REARVIEW MIRROR Turn the ignition off. Disconnect the Rearview Mirror harness connector. Turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go to step 3 No Replace the Rearview Mirror in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .
3. (X712) MICROPHONE 1 IN (+) CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Hands Free Module harness connector. Turn the ignition on. Measure the voltage of the (X712) Microphone 1 IN (+) circuit. Is voltage present? Yes Repair the (X712) Microphone 1 IN (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Replace the Hands Free Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .

1. When Monitored: With the ignition on.

1. Set Condition: The Hands Free Module (HFM) detects a short to ground or open on the (X722) Microphone 2 IN (+) circuit.

Scheme 345

Scheme 346

Scheme 347

1. CHECK FOR ACTIVE DTC NOTE: Verify the connection of the Rearview Mirror harness connector. Turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go to step 2 No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. INSIDE REARVIEW MIRROR Turn the ignition off. Disconnect the Inside Rearview Mirror harness connector. Connect a jumper wire between the (X793) Microphone Feed and the (X722) Microphone 2 IN (+) circuits. Turn the ignition on. With the scan tool, read the DTCs. Does the scan tool display this DTC as active? Yes Go to step 3 No Replace the Inside Rearview Mirror in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .
3. (X722) MICROPHONE 2 IN (+) CIRCUIT OPEN Turn the ignition off. Disconnect the Hands Free Module harness connector. Measure the resistance of the (X722) Microphone 2 IN (+) circuit between the Inside Rearview Mirror and Hands Free Module harness connectors. Is the resistance above 10K Ohms? Yes Repair the (X722) Microphone 2 IN (+) circuit for an open. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Go to step 4
4. (X722) MICROPHONE 2 IN (+) CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (X722) Microphone 2 IN (+) circuit. Is the resistance below 10K Ohms? Yes Repair the (X722) Microphone 2 IN (+) circuit for short to ground. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Replace the Hands Free Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .

1. When Monitored: With the ignition on.

1. Set Condition: The Hands Free Module (HFM) detects a short to voltage on the (X722) Microphone 2 IN (+) circuit.

Scheme 348

1. CHECK FOR ACTIVE DTC NOTE: Verify the connection of the Rearview Mirror harness connector. Turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go to step 2 No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. INSIDE REARVIEW MIRROR Turn the ignition off. Disconnect the Rearview Mirror harness connector. Turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go to step 3 No Replace the Rearview Mirror in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .
3. (X722) MICROPHONE IN 2 (+) CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Hands Free Module harness connector. Turn the ignition on. Measure the voltage of the (X722) Microphone IN 2 (+) circuit. Is voltage present? Yes Repair the (X722) Microphone IN 2 (+) circuit for a short to voltage. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Replace the Hands Free Module in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .

Scheme 349

1. When Monitored: Continuously when the ignition is on. Battery voltage between 10 and 16 volts. Ignition Off Draw (IOD) fuse installed. Totally Integrated Power Module (TIPM) is configured correctly.

1. Set Condition: Bus messages not received from the TIPM for approximately two to five seconds.

1. When Monitored: Continuously when the ignition is on. Battery voltage between 10 and 16 volts. Ignition Off Draw (IOD) fuse installed. Totally Integrated Power Module (TIPM) is configured correctly.

1. Set Condition: Bus messages not received from the Radio for approximately two to five seconds.