Channel 9 Interpretation
Diagnosis, Fault Memory - PassatVAG 1551 Function 08, Channel 9 Interpretation
Channel 9 provides the technician with essential information that would have to be verified manually before performing the basic engine settings.
The ECU scans the system for certain conditions that must be met or for certain components that must be present or operative. It then assigns the numerical values (listed in the table below) to these conditions or components and adds them together to create the display value.
A value of zero will be assigned to conditions or components in the following chart that are NOT MET or NOT PRESENT.
Note: By analyzing the value displayed in channel 9 (using simple addition or subtraction) you can easily determine if a component is present or not.
Display Example
Idle Switch Closed 1
Auto Trans in Neutral 4
A/C Compressor On 8
Total 13
(Displayed in Channel 9)