Circuit Description
The distance sensing cruise control (DSCC) module monitors the ignition 1 voltage circuit in order to determine if the voltage is within the normal operating range.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0800 Device Power 1 Circuit Voltage Below Threshold
This vehicle has DTCs which include DTC Symptoms. For more information on DTC symptoms, refer to DTC Symptom Description .
DTC Symptom | DTC Symptom Descriptor |
|---|---|
03 | Voltage Below Threshold |
Conditions for Running the DTC
| • | The ignition is in RUN. |
| • | The vehicle is moving at a speed greater than 40.2 km/h (25 mph). |
Conditions for Setting the DTC
| • | The DSCC module detects that the ignition 1 voltage is less than 9.2 volts. |
| • | The above condition is present for 7 seconds. |
Action Taken When the DTC Sets
| • | Loss of DSCC function |
| • | Cruise Not Ready indicator illuminates in the driver information center (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 module receives a clear code command from the scan tool. |
Diagnostic Aids
Refer to Testing for Intermittent Conditions and Poor Connections .
Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Cruise Control Schematics Connector End View Reference: Master Electrical Component List | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |
2 |
Does the scan tool indicate that the Ignition 1 Voltage parameter is within the specified range? | 9.2-16 V | Go to Diagnostic Aids | Go to Step 3 |
3 | Is DTC P0562 or P0563 current in the engine control module (ECM)? | -- | Go to Step 4 | |
4 |
Does the voltage measure greater than the specified value? | 9.2 V | Go to Step 5 | Go to Step 7 |
5 |
Does the voltage measure less than the specified value? | 9.2 V | Go to Step 8 | Go to Step 6 |
6 | Inspect for poor connections at the harness connector of the DSCC module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 10 | Go to Step 9 |
7 | Repair the high resistance in the DSCC module ignition 1 voltage circuit. Refer to Wiring Repairs . Did you complete the repair? | -- | Go to Step 10 | -- |
8 | Repair the high resistance in the DSCC module ground circuit. Refer to Wiring Repairs . Did you complete the repair? | -- | Go to Step 10 | -- |
9 | Replace the DSCC module. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 10 | -- |
10 |
Does the DTC reset? | -- | Go to Step 2 | System OK |
