Diagnostic Test

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
NOTE:
To Press the ignition on the Passive Entry Keyless Go (PEKG)/Keyless Ignition Node (KIN) system, use the rounded end of the FOBIK to press the Stop/Start button.
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
3. With the scan tool, erase all DTCs.
4. Press the ignition off for a minimum of 10.0 seconds.
5. Press the ignition on.
6. Using the recorded Environmental Data and the When Monitored Conditions above, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read DTCs.
Did the DTC return?

Yes
- Go To 2
No
- Perform the appropriate INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK FOR A SMART DOOR HANDLE
1. Verify that the smart sensor (magnet) is present by removing the Door Handle End Cap and visually looking for a smart sensor (magnet) in the side of the door handle cap closest to the handle.
  Is the smart sensor (magnet) in the door handle cap?
  
  Yes
  - Go To 3
  No
  - Replace the Front Right Exterior Door Handle Cap in accordance with the Service Information. Refer to HANDLE, EXTERIOR, REMOVAL AND INSTALLATION .
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR AN ACTIVE DTC
1. The battery should be at full charge before proceeding.
2. With the scan tool, read RF Hub DTCs and record on the repair order.
3. With the scan tool, select: "RFH" and "System" Tests.
4. Perform the Door Handle Verification Test. This will activate the Module to retest for DTCs.
5. With the scan tool, read RF Hub DTCs and wait one (1) minute.
  Is the DTC active?
  
  Yes
  - Go To 4
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE FRONT RIGHT PASSIVE ENTRY HANDLE SWITCH SENSE
1. With the scan tool, select "RFH", "Data" and scroll to "FRONT RIGHT Door Handle Power".
2. Observe the Value field.
  What does the Value field display?
  
  OFF
  - Go To 5
  ON
  - Go To 8
CHECK THE FRONT RIGHT PASSIVE ENTRY HANDLE SWITCH SENSE VALUE
1. With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
2. With the scan tool, select "RFH", "Data" and scroll to "FRONT RIGHT Door Handle Power".
3. Double click on the Value field to start the graph.
4. Observe the graph for a pulsating line.
  Is the graph pulsating between high and low on the screen?
  
  Yes
  - Go To 6
  No
  - Go To 7
CHECK THE FRONT RIGHT EXTERIOR DOOR HANDLE (PASSIVE ENTRY)
1. Remove the FRONT RIGHT Exterior Door Handle and disconnect the switch harness connector.
2. With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
3. With the scan tool, select "RFH", "Data" and scroll to "FRONT RIGHT Door Handle Power".
4. Double click on the Value field to start the graph.
5. Observe the graph for a pulsating line.
  Is the graph pulsating between high and low on the screen?
  
  Yes
  - Go To 7
  No
  - Replace the Front Right Exterior Door Handle Cap in accordance with the Service Information. Refer to HANDLE, EXTERIOR, REMOVAL AND INSTALLATION .
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P400) FRONT RIGHT PASSIVE ENTRY HANDLE SWITCH SENSE CIRCUIT
1. Continue with the scan tool still on "FRONT RIGHT Door Handle Power".
2. Observe the Value field.
  What does the Value field display?
  
  OFF
  - Go To 16
  ON
  - Perform the TESTING FOR AN INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE FRONT RIGHT PASSIVE ENTRY HANDLE SWITCH SENSE AND RETURN CIRCUITS FOR AN OPEN
1. Continue with the scan tool still on "FRONT RIGHT Door Handle Power".
2. Double click on the Value field to start the graph.
3. Observe the graph for a pulsating line.
  Is the graph pulsating between high and low on the screen?
  
  Yes
  - Go To 6
  No
  - Go To 9
CHECK THE FRONT RIGHT DOOR HANDLE FUNCTIONS
1. Stop the graph.
2. Lower the FRONT RIGHT door window.
3. Turn the ignition off, remove the FOBIK and close all doors.
4. With the scan tool, select "RFH", "Data" and scroll to "Last Passive Entry Function Completed".
5. Have the FOBIK outside the vehicle and within 1.5 m (5 ft.) of the FRONT RIGHT door handle.
6. In the next steps, wait two (2) seconds between each Lock and Unlock activation as there is a two second delay after each Lock action.
7. Press the Lock button and observe the screen for "Passive lock at FRONT RIGHT door".
8. Grab and lift the door handle and observe the screen for "Passive entry at FRONT RIGHT door".
9. Repeat steps 6 and 7 two more times.
  Is the Module receiving the inputs on the screen as you do them?
  
  Yes
  - Perform the TESTING FOR AN INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
  No
  - Go To 10
CHECK THE FRONT RIGHT DOOR HANDLE CIRCUITS
1. Remove the FRONT RIGHT Exterior Door Handle and disconnect the switch harness connector.
2. Measure the voltage between the (P401) Front Right Passive Handle Switch Return and the (P400) Front Right Passive Handle Sense circuits in the Front Right Exterior Door Handle Switch connector.
  Is the voltage above 11.8 volts?
  
  Yes
  - Replace the Front Right External Door Handle in accordance with the Service Information. Refer to HANDLE, EXTERIOR, REMOVAL AND INSTALLATION .
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 11
CHECK THE (P401) FRONT RIGHT PASSIVE HANDLE SWITCH RETURN CIRCUIT FOR CONTINUITY
1. Check for continuity between ground and the (P401) Front Right Passive Handle Switch Return circuit at the Front Right Exterior Door Handle Switch harness connector.
  Is there continuity between ground and the (P401) Front Right Passive Handle Switch Return circuit?
  
  Yes
  - Go To 14
  No
  - Go To 12
ISOLATE AND CHECK THE (P401) FRONT RIGHT PASSIVE HANDLE SWITCH RETURN CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. The ignition must be off when checking the continuity of a circuit.
2. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and the component harness connector containing the circuit being tested. Note: Use the wiring diagram as a guide to follow the path of the circuit.
3. Before measuring the resistance of any circuit, first measure the resistance between the two leads of the DVOM. Note: The meter leads can add resistance to the measurement value.
4. Connect one lead of the DVOM to the circuit being tested at the component harness connector.
5. Connect the other lead to the circuit being tested at the ECU harness connector and measure the resistance of the circuit.
NOTE:
When probing a circuit at an Electronic Control Unit (ECU) harness connector, always use an appropriate back probing tool to prevent any possible damage to the ECU terminals.

Is the resistance below 3.0 Ohms?

Yes
- Go To 13
No
- Repair the circuit for an open or high resistance.
- Perform the RADIO FREQUENCY HUB (RF-HUB) VERIFICATION TEST. Refer to RADIO FREQUENCY (RF HUB) VERIFICATION TEST .
CHECK THE (Z915) GROUND CIRCUIT FOR HIGH RESISTANCE BY LOAD TESTING THE CIRCUIT
1. Disconnect the component harness connector to isolate the ground circuit.
2. Connect the positive lead of the load test tool to the positive side of the Battery.
3. Connect the negative lead of the load test tool to the ground circuit at the component harness connector (A). Note: refer to the diagram below.
4. The bulb on the load test tool should be illuminated and bright if there is no resistance in the circuitry.
NOTE:
Why load test a circuit? A load test is used to determine if a circuit is capable of carrying the amperage needed to perform properly. The 3156 bulb in the load tool illustrated, is a simple but effective method of testing circuit functionality. A 3156 Bulb has approximately 6.0 Ohms of resistance when the bulb is powered and draws approximately 2.0 amps of current. Read the CIRCUIT LOAD TESTING PROCEDURE for information on building a simple load test tool and for additional load testing information and alternative methods of load testing or voltage drop testing a circuit. Refer to CIRCUIT TESTING PROCEDURES .

NOTE:
A 12-volt test light can be substituted for the load test tool, but only if the test light draws enough current to effectively load test the circuit. Many high impedance test lights draw very little amperage (less than 0.1 amps) and are not reliable to load test a circuit. To perform a proper load test of a circuit, the tool being used should draw more than approximately 0.75 amps.
NOTE:
Why perform a Voltage Drop Test: To verify with certainty there is not any resistance in the circuit being tested, perform a simple voltage drop test across the 3156 bulb of the load test tool. To do so perform the following:
- 1. Connect the leads of a DVOM to the alligator clips on the load test tool while the load test tool is connected in series with the circuit.
- 2. Compare the voltage drop across the bulb to the voltage reading across the Battery terminals.
- 3. The voltage dropped across the bulb should be equal to the voltage reading across the Battery terminals if there is no resistance in the circuit being tested.
Example: 2.0 Ohms of resistance in the circuit being tested will cause the voltage measurement across the bulb to be 25% less than when compared to Battery voltage. The reason for this is that the 2.0 Ohms in the circuit makes up 25% of the total circuit resistance of 8.0 Ohms. Read the CIRCUIT LOAD TESTING PROCEDURE for information on building a simple load test tool and for additional load testing information and alternative methods of load testing or voltage drop testing a circuit. Refer to CIRCUIT TESTING PROCEDURES .
Courtesy of CHRYSLER GROUP, LLC

NOTE:
When probing a circuit at an Electronic Control Unit (ECU) harness connector, always use an appropriate back probing tool to prevent any possible damage to the ECU terminals.

NOTE:
Compare the brightness of the bulb in the load test tool to that of a direct connection to Battery.

Is the load test bulb illuminated and bright?

Yes
- Go To 16
No
- Repair the ground circuit for an open or high resistance.
- Perform the RADIO FREQUENCY HUB (RF-HUB) VERIFICATION TEST. Refer to RADIO FREQUENCY (RF HUB) VERIFICATION TEST .
ISOLATE AND CHECK THE (P400) FRONT RIGHT PASSIVE ENTRY HANDLE SWITCH SENSE CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. The ignition must be off when checking the continuity of a circuit.
2. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and the component harness connector containing the circuit being tested. Note: Use the wiring diagram as a guide to follow the path of the circuit.
3. Before measuring the resistance of any circuit, first measure the resistance between the two leads of the DVOM. Note: The meter leads can add resistance to the measurement value.
4. Connect one lead of the DVOM to the circuit being tested at the component harness connector.
5. Connect the other lead to the circuit being tested at the ECU harness connector and measure the resistance of the circuit.
NOTE:
When probing a circuit at an Electronic Control Unit (ECU) harness connector, always use an appropriate back probing tool to prevent any possible damage to the ECU terminals.

Is the resistance below 3.0 Ohms?

Yes
- Go To 15
No
- Repair the circuit for an open or high resistance.
- Perform the RADIO FREQUENCY HUB (RF-HUB) VERIFICATION TEST. Refer to RADIO FREQUENCY (RF HUB) VERIFICATION TEST .
CHECK THE (P400) FRONT RIGHT PASSIVE ENTRY HANDLE SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE
1. Measure the voltage between ground and the (P400) Front Right Passive Handle Switch Sense circuit at the RF Hub Module C2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (P400) Front Right Passive Handle Switch Sense circuit for a short to voltage.
  - With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 16
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all RF HUB Module harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all RF HUB Module harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Using the recorded Vehicle Scan Report, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read RF HUB DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Radio Frequency Hub Module in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL AND INSTALLATION .
  - Perform the RADIO FREQUENCY HUB (RF-HUB) VERIFICATION TEST. Refer to RADIO FREQUENCY (RF HUB) VERIFICATION TEST .
  No
  - Perform the RADIO FREQUENCY HUB (RF-HUB) VERIFICATION TEST. Refer to RADIO FREQUENCY (RF HUB) VERIFICATION TEST .
  - Test complete.