B1515

Common sensor ground, short circuit to BPV.

NOTE : The cabin temperature sensor ground (pin 15), the blended air temperature sensor ground (pin 14) and the solar sensor ground (pin 35) have a common connection to the Automatic Climate Control (ACC) control module.
For this reason, only one diagnostic trouble code can be detected.

Diagnostic trouble code B1515 can give the following consequential faults:
B1343, B1348 and B1353.

Conditions
Control module output pins 14, 15 or 35 are shorted to BPV.

Action
1 Connect a BOB and measure the voltage between pins 14 and 1 on the ACC control module. Erase the diagnostic trouble code if the voltage is less than 0.5 volts.
Check that the diagnostic trouble code is not re-registered.
2 Unplug the cabin temperature sensor connector and measure the voltage between-pins 15 and 1. If the value is less than 0.5 volts, there is a fault in the cabin temperature sensor.
Change the cabin temperature sensor.
3 Unplug blended air temperature sensor connector H10-4 and measure the voltage between pins 14 and 1.
If the value is less than 0.5 volts, there is a fault in the blended air temperature sensor. Change the blended air temperature sensor.
4 Unplug the solar sensor connector and measure the voltage between pins 35 and 1.
If the value is less than 0.5 volts, the fault is in the solar sensor.
Change the solar sensor.
5 The fault is in the wiring harness.
Localize and remedy the fault.