996 Turbo diagnostic manual — Turbo applicability only / PAGE 885
91-1498007 CDR23 · Open circuit in diagnosis distribution line
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91
911 Turbo (996) PCM 2 / CDR 23
91-1498007 CDR23
Open circuit in diagnosis distribution line
Diagnostic conditions
• Ignition on
• Start CDR23.
Possible cause of fault
Diagnosis distribution line: short circuit to ground/ B+ or open cir-
cuit.
Optical waveguide damaged.
Optical waveguide broken.
Optical waveguide kinked.
The receiving MOST control module is faulty.
CDR23 faulty.
!
♦The diagnosis distribution line is connected to the following
MOST control modules:
♦CDR23 as of model year 2003
♦The MOST optical waveguide is connected to the following con-
trol modules:
♦Amplifier
♦CD changer
Affected pin
CDR23, plug C, pin 4
9101 8007 CDR23 91-149 page 1
Printed in Germany – 29, 2002 8007CRlwl
This is a source reference. Confirm exact model applicability in the original material.