Test point

Footwell blower outlet sensor

Open circuit Short to ground Fault code 23

Diagnosis conditions

No control module fault stored. No fault with supply voltage (5 volts). Outside temperature higher than - 30 °C.

Open circuit

1. Unplug connectors A and B from the heating/air-conditioning control.

2. Connect ohmmeter to connectors A 12 and B 5.

3. Unplug connector from blower outlet sensor.

4. Connect ohmmeter to connector A 12 and blower outlet

5. Connect ohmmeter to connector B 5 and blower outlet

6. Connect voltmeter to connector B 5 and ground.

If approx. 5 volts are displayed, check wiring harness for pinching and chafing damage.

Fault, Fault code Possible causes, elimination, notes

Test point 5

Supply voltage (terminal 15)

Voltage too high Voltage too low Fault code 24

Short to ground

1. Unplug connector B from the heating/air-conditioning control

2. Connect ohmmeter to connector B 5 and ground

If 0 - 5 £2 is displayed, check wiring harness for pinching

Diagnosis conditions

No control module fault stored.

Voltage too high

Check the alternator. Voltage too low

1. Check the alternator.

2. Check or charge the battery.

3. Check contact resistance of wire connections.

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