• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
IGN I | P0562 | P0562 | -- | -- |
Ground | -- | P0562 | -- | -- |
The engine control module (ECM) monitors the system voltage to ensure that the voltage stays within the proper range. Damage to components, and incorrect data may occur when the voltage is out of range.
• | The vehicle speed is above 8 km/h (5 mph). |
• | The system voltage is between 9.5-18 V. |
The ECM detects a system voltage below 10 V for 5 seconds.
DTC P0562 is a C type DTC.
DTC P0562 is a C type DTC.
• | A low voltage DTC set in multiple modules indicates a concern in the charging system. |
• | A low voltage value in multiple modules indicates a concern in the charging system. |
Charging System Description and Operation
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
⇒ | If not within the specified range, refer to Charging System Test |
• | Terminal 73 X1 (LS3/LS7) |
• | Terminal 73 X2 (LS9) |
• | Terminal 73 X3 (LS9) |
⇒ | If greater than the specified range, test the ground circuits for an open/high resistance. |
• | Terminal 18 X1 (LS3/LS7) |
• | Terminal 19 X1 (LS3/LS7) |
• | Terminal 20 X1 (LS3/LS7) |
• | Terminal 47 X1 (LS3/LS7) |
• | Terminal 20 X1 (LS3/LS7) |
• | Terminal 18 X1 (LS9) |
• | Terminal 19 X1 (LS9) |
• | Terminal 20 X1 (LS9) |
• | Terminal 13 X2 (LS9) |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for ECM replacement, setup, and programming