PSM 05 911 Turbo (996)45 · Work instruction Display OK

PSM 05 911 Turbo (996)45 Work instruction Display OK If not OK 3 Check ground of pressure ♦Measure voltage between pin 3 approx. 5 V Open circuit in cir- sensor for open circuit of the booster pump pressure ⇒ Step 4 cuit between PSM sensor plug and pin 1 of the control module plug booster pump pressure sensor pin 25 and pin 1 of plug the booster pump pressure sensor plug, or PSM contol module faulty → End 4 Check signal lead of the ♦Measure voltage between pin 2 < 0.3 V Short circuit to volt- pressure sensor for short of the booster pump pressure ⇒ Step 5 age between pin 2 circuit to voltage sensor plug and ground of booster pump pressure sensor plug and PSM con- trol module plug pin 26 → End 5 Check signal lead of the ♦Switch off ignition < 5 Ω Short circuit to pressure sensor for short ⇒ Step 6 ground between pin ♦Measure resistance between pin circuit to ground 2 of booster pump 2 of the booster pump pressure pressure sensor sensor plug and ground plug and PSM con- trol module plug pin 26 → End 6 Check signal lead of the ♦Measure resistance between pin < 5 Ω Open circuit pressure sensor for open 2 of the booster pump pressure ⇒ Step 7 between pin 2 of the circuit sensor plug and PSM control booster pump pres- module plug pin 26 sure sensor plug and PSM control module plug pin 26 → End 7 Replace hydraulic unit → End 45-30 page 2 4503 Fault code 4460 4460ps05 Printed in Germany – 4, 2001