P1C58-DC/DC CONVERTER 1 TEMPORARY ERROR
P1C58-DC/DC CONVERTER 1 TEMPORARY ERROR
For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
Continuously with the ignition on.
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Set Condition:
The DC/DC Converter 1 is bypassing due to high temperature.
Possible Causes |
|---|
| ADDITIONAL ELECTRICAL LOADS ADDED TO THE DC/DC CONVERTER 1 CIRCUITS |
| DC/DC CONVERTER 1 INTERNAL FAILURE |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
| 1. | Turn the ignition on. |
| 2. | With the scan tool, erase DTCs in the PCM. |
| 3. | Cycle the ignition on and off several times, leaving the ignition on for at least 20 seconds during each ignition cycle. |
| 4. | Turn the ignition on. |
| 5. | Monitor the scan tool for at least two minutes. |
| 6. | With the scan tool, select View DTCs. |
Is the status Active for this DTC?
Yes
- Go To 2
No
- Perform the INTERMITTENT DTC diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
2. CHECK FOR ANY ADD ON COMPONENTS TO THE VEHICLE
| 1. | Inspect the vehicle for any aftermarket equipment (I.E. Radio's, Amps, etc.) that may be drawing excessive current from the DC/DC Converter. |
Is there evidence of any aftermarket components on the vehicle?
Yes
- Remove the aftermarket components that are connected to the DC/DC Converter circuit and recheck to see if the DTC is active. If DTC is still active, replace the DC/DC Converter in accordance with the service information.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
No
- Replace DC/DC Converter 1 in accordance with the service information.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).