Air conditioning H01, H02 911 Turbo (996)80 · Work instruction Dis

Air conditioning H01, H02 911 Turbo (996)80 Work instruction Display OK If not OK 3 Check relay for fresh-air ♦Switch off ignition Battery voltage Relay for heating blower ⇒ Step 4 activation faulty or ♦Remove plug B from the air- short circuit to conditioning system regulator ground or open cir- ♦Reconnect heating activation cuit in the line once more between heating ♦Switch on ignition activation relay and the air-conditioning ♦Measure voltage between plug system regulator B 11 and ground 4 Check blower regulator ♦Switch off ignition Fault has been rem- ⇒ Step 6 (end setting) edied ♦Reconnect plug B to the air- ⇒Step 5 conditioning system regulator ♦Switch on ignition ♦Bridge terminals K2 and K3 on blower regulator ♦Switch on blower 5 Check blower regulator ♦Switch off ignition < 5 Ω Repair wiring har- (end setting) and line for ⇒Step 9 ness ♦Remove plug B from the air- air-conditioning system → End conditioning system regulator regulator ♦Remove plug from blower regu- lator ♦Measure resistance between plug B on the air-conditioning system regulator pin 12 and plug on blower regulator pin K 1 6 Check line to blower ♦Switch off ignition 0 V Repair wiring har- motor for short to B+ ⇒ Step 5 ness ♦Remove plug from blower → End motor ♦Switch on ignition ♦Measure voltage between plug on the blower motor pin L2 and ground ♦Measure voltage between plug on the blower motor pin L1 and ground 7 Check line to blower ♦Measure resistance between ∞ Ω Repair wiring har- motor for short to plug on the blower motor pin ⇒ Step 6 ness ground L2 and ground → End 80-17 page 2 8001 Fault code 31 31xxxh02 Printed in Germany – 15, 2001