DTC C0800 DSCC
Diagnostic Instructions
| • | 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. |
DTC Descriptors
DTC C0800 03: Device Power 1 Circuit Voltage Below ThresholdDTC C0800 07: Device Power 1 Circuit Voltage Above Threshold
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
B+ | C0800 03 | C0800 03 | -- | -- |
Ground | -- | C0800 03 | -- | -- |
Circuit/System Description
The distance sensing cruise control (DSCC) module monitors the B+ voltage circuit in order to determine if the voltage is within the normal operating range. When the DSCC module detects that the B+ voltage is below 9.2 V or above 16 V, DTC C0800 sets.
Conditions for Running the DTC
C0800 03 and 07
| • | Ignition is in RUN. |
| • | Vehicle speed is greater than 40.2 km/h (25 mph). |
Conditions for Setting the DTC
C0800 03
| • | The DSCC module detects that the B+ voltage circuit is less than 9.2 V. |
| • | The above condition is present for 7 seconds. |
C0800 07
| • | The DSCC module detects that the B+ voltage circuit is greater than 16 V. |
| • | The above condition is present for 7 seconds. |
Action Taken When the DTC Sets
C0800 03 and 07
The following actions occur:
| • | Loss of adaptive cruise function |
| • | Cruise Not Ready indicator illuminates in the DIC. |
Conditions for Clearing the DTC
| • | The DTC becomes history when the fault is no longer present. |
| • | A History DTC clears after 100 malfunction-free ignition cycles. |
| • | The DSCC receives a clear code command from the scan tool. |
Diagnostic Aids
| • | A possible cause of this DTC could be overcharging with a battery charger or jump starting. |
| • | A low voltage DTC in multiple modules indicates a concern in the charging system. |
| • | A high voltage value in multiple modules indicates a concern in the charging system. |
Reference Information
Schematic Reference
Connector End View Reference
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Engine running, measure and record the voltage at the battery terminals.
- Verify that the battery voltage is 12.6-15.5 V.
- Engine running, observe the scan tool DSCC ignition voltage signal parameter.
- The battery terminal and DSCC parameter should not differ by more than 2 V.
| ⇒ | If the battery voltage is not within the specified range, refer to Charging System Test |
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the distance sensing cruise control (DSCC) module.
- Ignition OFF, test for less than 3.0 Ω between the ground circuit terminal 6 and ground.
- Ignition ON, verify a test lamp illuminates between the B+ voltage circuit terminal 1 and ground.
- If all circuits test normal, test or replace the DSCC module.
| ⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
| ⇒ | If the test lamp does not illuminate , test the circuit for an open/high resistance. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for DSCC module replacement, setup, and programming
DTC C0800 AFS
Diagnostic Instructions
| • | 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. |
DTC Descriptors
DTC C0800 03: Device Power 1 Circuit Voltage Below ThresholdDTC C0800 07: Device Power 1 Circuit Voltage Above Threshold
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Battery Positive Voltage | C0800 03 | C0800 03 | -- | -- |
Ground | -- | C0800 03 | -- | -- |
Circuit/System Description
The active front steering control module (AFS) checks whether the system voltage is with in the normal range. This diagnostic compares power state with the engine running state received over serial data to determine whether or not there is an power ground short fault.
Conditions for Running the DTC
The engine is running.
Conditions for Setting the DTC
The engine is running, and the AFS control module detects that the device voltage is less than 9.2 volts or greater than 17 volts
Actions Taken When DTC Sets
| • | DTC is stored in memory. |
| • | The active front steering warning indicator will be displayed on the driver information center (DIC). |
| • | Steering assist is set to a default level. |
Conditions for Clearing the MIL/DTC
| • | When the condition for the DTC is no longer present. |
| • | The AFS control module automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles. |
Diagnostic Aids
| • | A high or low voltage value in multiple modules indicates a concern in the charging system. |
| • | Overcharging with a battery charger or jump starting can cause this DTC to set. |
Reference Information
Schematic Reference
Description and Operation
Active Front Steering Description and Operation
Connector End View Reference
Electrical Information Reference
Scan Tool Reference
Control Module References for Scan Tool Information
Circuit/System Verification
- Engine running, measure and record the voltage at the battery terminals.
- Verify that the battery voltage is 12.5-15.5 volts.
- Engine running, observe the scan tool AFS battery positive voltage parameter.
- The battery terminal and AFS parameter should not differ by more than 2 volts.
| ⇒ | If the battery voltage is not within the specified range, refer to Charging System Test. |
Circuit/System Testing
- Ignition OFF, disconnect the harness connectors at the AFS module.
- Ignition OFF, test for less than 3.0 ohms between the ground circuit terminals listed below and ground.
- Ignition ON, verify a test lamp illuminates between the B+ circuits listed below and ground.
- If all circuits test normal, replace the AFS module.
| • | Terminal 1 X2 |
| • | Terminal 3 X3 |
| ⇒ | If greater than the specified value, test the affected ground circuit for an open/high resistance. |
| • | Terminal 2 X2 |
| • | Terminal 1 X3 |
| ⇒ | If the test lamp did not illuminate, test the affected B+ circuit for a short to ground or an open/high resistance. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for AFS control module replacement, setup, and programming
