P1D3A-INTERNAL CONTROL MODULE A/D VOLTAGE RATIO ERROR
For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
With the ignition on.
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Set Condition:
The Powertrain Control Module (PCM) detects an internal failure.
Possible Causes |
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| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
| 1. | Ignition on, engine not running. |
| 2. | With the scan tool, select View DTCs. |
Is this DTC present?
Yes
- Go To 2
No
- Perform the INTERMITTENT DTC diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
2. CHECKING THE PCM POWER AND GROUND CIRCUITS
| NOTE: | Check the vehicles repair history. If the vehicle has not been in a dealer with this DTC previously, clear the DTC and deliver the vehicle back to the customer. If the vehicle does has a prior occurrence of this fault being present, continue with this test procedure. |
| 1. | Perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS. (Refer to 29 - Non-DTC Diagnostics/Drivability - Diesel - Diagnosis and Testing) . |
Were any problems found?
Yes
- Repair the PCM power and ground circuit(s) as necessary.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
No
- Replace the Powertrain Control Module (PCM) in accordance with the service information.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).