B1415-HFM RIGHT AUDIO OUTPUT CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
The Hands Free Module detects low voltage on the (X704) Right Audio Output circuit.
| Possible Causes |
| (X704) RIGHT AUDIO OUTPUT CIRCUIT OPEN |
| (X704) RIGHT AUDIO OUTPUT CIRCUIT SHORT TO GROUND |
| (X795) COMMON AUDIO OUTPUT CIRCUIT OPEN |
| (X704) RIGHT AUDIO OUTPUT CIRCUIT SHORT
TO (X795) COMMON AUDIO OUTPUT CIRCUIT |
| HANDS FREE MODULE |
Diagnostic Test
1. CHECK FOR ACTIVE DTCWith the scan tool, read the active DTC's.
Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per cycle.
With the scan tool, read the active DTC's.
Does the scan tool display this DTC as active?
Yes
- Go To 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. (X704) RIGHT AUDIO OUTPUT CIRCUIT OPEN
Turn the ignition off.
Disconnect the Hands Free Module harness connector.
Disconnect the Radio C1 harness connector.
Measure the resistance of the (X704) Right Audio Output circuit between the HFM connector and the radio connector.
Is the resistance below 5.0 ohms?
Yes
- Go To 3
No
- Repair the (X704) Right Audio Output circuit for an open.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
3. (X704) RIGHT AUDIO OUTPUT CIRCUIT SHORT TO GROUND
Measure the resistance between ground and the (X704) Right Audio Output circuit.
Is the resistance below 5.0 ohms?
Yes
- Repair the (X704) Right Audio Output circuit for short to ground.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No
- Go To 4
4. (X795) COMMON AUDIO OUTPUT CIRCUIT OPEN
Measure the resistance of the (X795) Common Audio Output circuit between the HFM connector and the radio connector.
Is the resistance below 5.0 ohms?
Yes
- Go To 5
No
- Repair the (X795) Common Audio Output circuit for an open.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
5. (X704) RIGHT AUDIO OUTPUT CIRCUIT SHORT TO (X795) COMMON AUDIO OUTPUT CIRCUIT
Measure the resistance between the (X704) Right Audio Output circuit and the (X795) Common Audio Output circuit.
Is the resistance below 5.0 ohms?
Yes
- Repair the (X704) Right Audio Output circuit for a short to the (X795) Common Audio Output circuit.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No
- Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Hands Free Module in accordance with the service information.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).