Instrument cluster K20 911 Turbo (996)90 · The relays are in the rear area of the relay carrier. The spoiler i

Instrument cluster K20 911 Turbo (996)90 Note! The relays are in the rear area of the relay carrier. The spoiler is extended via relay no. 3. The spoiler is retracted via relay no. 9 (see wiring diagram) Affected terminals Connector A, terminals 6, 7, 22, 23 Spoiler not extending Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check fuse ♦Check fuse D 7 ⇒ Step 2 Replace fuse → End 2 Check spoiler status ♦In the menu item "Input sig- Display in ⇒ Step 13 nals", select "Spoiler status" PST2:"Spoiler is ♦Spoiler completely retracted retracted" ⇒ Step 3 3 Check spoiler key ♦In the menu item "Input sig- Display in Check spoiler key nals", select "Spoiler key" PST2:"Extend or check the wiring ♦Actuate key "Extend spoiler" spoiler key actu- from the spoiler key ated" to the instrument and perform the function ⇒ Step 4 cluster check → End 4 Check relay 3 power sup- ♦Switch off ignition Battery voltage Short circuit to ply (rear relay carrier) ⇒ Step 5 ground/ open cir- ♦Disconnect relay 3 cuit in the wiring ♦Measure voltage between relay between fuse D7 socket pin 5 and ground and relay 3. Repair wiring har- ness. → End 5 Check ground lead relay 3 ♦Measure resistance between < 5Ω Repair wiring har- (rear relay carrier) relay socket pin 4 and ground ⇒ Step 6 ness → End ♦Measure resistance between relay socket pin 2 and ground 6 Check control signal from ♦Switch on ignition "Extend spoiler" ⇒ Step 10 instrument cluster to relay ♦Actuate key "Extend spoiler" key actuated carrier battery voltage and at the same time measure ⇒ Step 7 the voltage between plug on relay socket pin 7 and ground 90-29 page 2 9025 Fault code 9150 9150xk20 Printed in Germany – 18, 2002