SAAB WIS ONLINE

T8 / P0134 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)

  P0134 00


O2S Circuit. No Activity Detected. Sensor 1.

Fault symptom

Fault indicator lamp (for further information see WIS Fault diagnosis, general)

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Battery voltage must be between 11 - 16 V.
Engine running.
Lambda status 0.15 or 16.
EVAP, leakage diagnostics inactive.
Preheating active for more than:

(depending on start temperature, the lowest of coolant and intake air temperature is selected)
-9°C 570s.
-8°C 270s.
+8°C 270s.
+9°C 80s.
NONE of the following DTCs must be detected:

P0112, P0113

Fault criteria:

When voltage across the sensor has not been outside of the range 0.30-0.60 V for 10 s.

Dependent:

None

System reaction to a fault:

Closed loop is blocked.
Preheating of oxygen sensors 1 and 2 is stopped.
Fuel adaptation is reset and switched off.

OK report:

Diagnosis completed without fault report.

Fault handling:

Type III
(See section Fault handling III, "Other emission-related components and functions" for more information.)

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:
O2S 1

(See also description of readings/activations in diagnostic tool)