Porsche 944 User Manual

Page 41

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944

Maintenance, Self-diagnosis

03

Error code - List

Error code

1500

1000

1111

1112

1113

1114

1121

1123

1124

1125

1131

1132

1133

1134

1141

Error path

No error

Output end

Supply voltage too low/high

Idle contact

Full load contact

NTC 2

Air-flow sensor

Lambda control detects a too rich / too lean mixture

Lambda probe signal not correct

NTC 1

Knock sensor 1

Knock sensor 2

Knock control in the control unit

Hall generator signal

DME control unit

A digit 2 (e.g. 1211) may appear in the second error code digit position to indicate "sporadic

errors", i.e. an occasionally occurring error.

This does not apply to error codes 1000 and 1500.

Error code - List

Printed in Germany - XVI, 1987

03 - 29

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