Refer to
Power, Ground, DLC and MIL
in Engine Controls Schematic and Routing
Diagrams for wiring view.
The PCM monitors system voltage on the PCM ignition feed circuit. If the system voltage is out of tolerance, DTC P0560 will be set. When the conditions that set DTC P0560 are present, operation of some vehicle systems and components may be affected.
The engine is running.
• | System voltage monitored at the PCM ignition feed circuit is less than 9 volts or greater than 16 volts. |
• | Above conditions for longer than 25 seconds. |
• | The powertrain control module (PCM) stores the DTC information into memory when the diagnostic runs and fails. |
• | The malfunction indicator lamp (MIL) will not illuminate. |
• | The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Failure Records. |
• | A History DTC will clear after forty consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic. |
• | A last test failed (Current DTC) will clear when the diagnostic runs and does not fail. |
• | Use a scan tool in order to clear the MIL/DTC. |
• | Interrupting the PCM battery voltage may or may not clear DTCs. This practice is not recommended. Refer to Powertrain Control Module Description , Clearing Diagnostic Trouble Codes. |
Notice: Use the connector test adapter kit J 35616-A for any test that
requires probing the following items:
• The PCM harness connectors • The electrical center fuse/relay cavities • The component terminals • The component harness connector
Important: Be sure to inspect PCM engine grounds for being secure and clean.
Important: Charging with a battery charger while starting the engine can cause DTC P0560 to set.
If DTC P0560 cannot be duplicated, reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to set occurs. This may assist in diagnosing the condition. For complete information and additional diagnostics for the vehicle charging system, refer to Charging System Check .
If the problem is intermittent, refer to Intermittent Conditions .
Number(s) below refer to the step number(s) on the Diagnostic Table.
Step | Action | Value(s) | Yes | No |
---|---|---|---|---|
1 | Did you perform the Powertrain On-Board Diagnostic System Check? | -- | ||
2 | Is DTC P1635 also set? | -- | ||
3 |
Is Ignition 1 voltage between the specified values? | 10 V-16 V | ||
4 |
Does the scan tool indicate DTC failed this ignition? | -- | Refer to Diagnostic Aids. | |
5 |
Does digital multimeter show battery voltage between the specified values? | 10 V-16 V | ||
6 |
Does the digital multimeter show battery voltage between the specified values? | 10 V-16 V | ||
7 |
Does the digital multimeter display voltage near the specified value with the Gen. L Term. commanded ON? | 5V | ||
8 | Compare the Ignition 1 voltage displayed on the scan tool with the actual battery voltage read with the digital multimeter. Does the scan tool Ignition 1 value closely match the actual value read with the digital multimeter? | -- | Refer to Diagnostic Aids. | |
9 |
Was a problem found? | -- | ||
10 |
Was a problem found? | -- | ||
11 |
Was a problem found? | -- | ||
12 |
Was a problem found? | -- | Go to Charging System Check . | |
Replace the PCM. Important:: The replacement PCM must be programmed. Refer to Powertrain Control Module Replacement/Programming . Is action complete? | -- | -- | ||
14 |
Is Ignition 1 voltage between the specified values? | 10 V-16 V | ||
15 | Review Captured Info using the scan tool. Are there any DTCs that have not been diagnosed? | -- | Go to the applicable DTC table | System OK |