Display: approx. 5 Volts
minimum fan speed
Display: approx. 9 Volts
7. Check driver.
- Connect voltmeter to plus and pin 3 on the driver connector.
Display: Battery positive voltage
- Connect voltmeter to plus and pin 1 on the driver connector.
maximum fan speed
Display: approx. 5 Volts
minimum fan speed
Display: approx. 9 Volts
- Connect voltmeter to plus and pin 2 on the driver connector.
maximum fan speed
Display: approx. 12 Volts
minimum fan speed
Display: approx. 0 Volts
8. Check wiring from the heating/air conditioning control to the driver for continuity.
9. Check fan motor.
Voltage Too High
Note:
A higher fan voltage can be caused only by a short to ground on the wires on pin 1 or pin 2 of the driver.
1. Pull off connector C on the heating/air conditioning control.
2. Pull off connector on the driver.
3. Connect ohmmeter to C-16 and ground.
Display: infinity
4. Pull off connector on the fan motor.
5. Connect ohmmeter to driver connector pin 2 and ground.
Display: infinity
Test Point 13
TEST POINT 13
Control module Faulty
DTC 32
Fault Effect: No control
Replace the heating/air conditioning control.
Test Point 14
TEST POINT 14
Sun Sensor Short To B+, Short To Ground