Diagnostic Test
WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR AN ACTIVE DTC NOTE:
Verify that the vehicle's battery is fully charged with a DVOM and use the scan tool to compare the Battery Voltage listed under "Data" in the RFH View to that of the BCM. If the vehicle's battery is not fully charged, correct this condition before proceeding.
NOTE:If another antenna has a Short to Ground, General Electrical Failure or Open DTC, both antennas will set this Short to Voltage DTC.
- Turn the ignition on.
- With the scan tool, read RF Hub DTCs and record on the repair order.
- With the scan tool, select: RF Hub, More Options and System Tests.
- Perform the RF Hub LF Antenna Verification Tests.
- With the scan tool, read RF Hub DTCs.
Is the DTC active?
Yes
- Go To 2
No
- The condition or conditions that originally set this DTC 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 and repair as necessary. If no problems are found, test complete.
- CHECK THE (D922) PASSIVE ENTRY ANTENNA 2 SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
- Turn the ignition off.
- Disconnect the Radio Frequency Hub C2 harness connector.
- Turn the ignition on.NOTE:
To turn the ignition on for the Passive Entry Keyless Go (PEKG)/Keyless Ignition Node (KIN) system when the RF Hub C2 connector is disconnected, use the rounded end of the FOBIK to press the Stop/Start button.
- Measure the voltage between ground and the (D922) Passive Entry Antenna 2 Signal circuit at the Radio Frequency Hub C2 harness connector.
Is there any voltage present?
Yes
- Repair the (D922) Passive Entry Antenna 2 Signal circuit for a short to voltage.
No
- Go To 3
- CHECK THE (D923) PASSIVE ENTRY ANTENNA 2 RETURN CIRCUIT FOR A SHORT TO VOLTAGE
- Measure the voltage between ground and the (D923) Passive Entry Antenna 2 Return circuit at the RF Hub C2 harness connector.
Is there any voltage present?
Yes
- Repair the (D923) Passive Entry Antenna 2 Return circuit short to voltage.
No
- Replace the RF HUB in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
- Perform the RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- Measure the voltage between ground and the (D923) Passive Entry Antenna 2 Return circuit at the RF Hub C2 harness connector.