B2507

DTC B2507

CIRCUIT DESCRIPTION
The climate control seat module (CCSM) modes are controlled by a 100 Hertz pulse width modulation (PWM) signal that is generated by the door control module. When a door module receives a heated or cool seat request, it sends this PWM signal through the heated/cool seat mode signal circuit to the CCSM. The CCSM then activates the heated or cool seat system as requested.

CONDITIONS FOR RUNNING THE DTC
The door control module must be powered and can not have B1327 - Battery Voltage Low or B1328 - Battery Voltage High set as an active DTC for this DTC to set.

CONDITIONS FOR SETTING THE DTC
- This DTC will set, when the ignition is in ON position, the CCS system is OFF, and the door control module detects that the voltage from the CCSM is less than 2.0 volts for 2 seconds.
- This DTC will set, when the ignition in the ON position, the CCS system is ON, and the door control module detects that the voltage from the CCSM is greater than 10 volts for 2 seconds.

ACTION TAKEN WHEN THE DTC SETS
The CCSM will discontinue operation when this DTC is set.

CONDITIONS FOR CLEARING THE DTC
The DTC automatically clears when the door module detects that the voltage from the CCSM is greater than 2 volts but less than 10 volts.

TEST

Steps 1-4:

Steps 5-10: