Test Point 14

Test point 14
Sun sensor
Short to B+
Short to ground

DTC 33

Diagnosis conditions
No control module fault stored.
No fault on the supply voltage (5 Volt).

Short to B+/short to ground
1. Remove sun sensor.
2. Disconnect plug connection on the sun sensor.
3. Connect voltmeter to sleeve side of pin 2 (minus) and pin 3 (plus).
Switch on ignition.
Display: approx. 4.5 - 5 Volt

If 0 Volt is displayed, check wiring to the heating/air conditioning control A 12 and B 18 for continuity.
Check wiring to the heating/air conditioning control B 18 for short to ground.

NOTE: The wires are routed via two plug connections on the heater/ A/C unit. Replace the heating/air conditioning control if the wires are OK.

4. Connect ohmmeter to sun sensor pins 2 and 3.
Sun sensor not in darkness
Display: approx. 1.3 MOhms

Sun sensor in darkness
Display: approx. 240 kOhms