DTC 48

Part 1 Of 2:

Part 2 Of 2:

CIRCUIT DESCRIPTION
The EBTCM is required to operate within a specified range of voltage to function properly. It monitors the ignition feed circuit to determine if the voltage falls below a minimum level or above a maximum level.

CONDITIONS FOR SETTING THE DTC
- The EBTCM operating voltage falls below 9.4 volts out of ABS/TCS control, or 8.8 volts during ABS/TCS control.
- The EBTCM operating voltage rises above 17.4 volts out of ABS/TCS control.
- The low voltage or the high voltage is detected for more than 500 milliseconds with the vehicle speed above 6 km/h (3.6 mph).

ACTION TAKEN WHEN THE DTC SETS
A malfunction DTC is stored. The ABS/TCS valves are switched passive, which prevents a possible pump start-up. The ABS and the TC indicator lamps are turned on. The ABS/TCS remains active.


CONDITIONS FOR CLEARING THE DTC
- The condition for the DTC is no longer present.
- The scan tool Clear DTCs function is used.
- 100 drive cycles have passed with no DTCs detected.

DIAGNOSTIC AIDS
Perform a thorough inspection of the wiring. Perform a thorough inspection of the connectors. Failure to carefully and fully inspect the wiring and the connectors may result in misdiagnosis. Misdiagnosis causes part replacement with reappearance of the malfunction.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
2. This step checks if the voltage is above the maximum of the range.
4. This step checks if the voltage is below the minimum of the range.
9. This step checks for an open in the ignition input circuit.
10. This step checks for a short to ground in the ignition input circuit.