Instrument Cluster / Carrier: Testing and Inspection

The electronic components and instruments installed in the instrument cluster should reflect the individual vehicles equipment specification. The electronic circuitry in every instrument cluster incorporates a monitoring function designed to allow you to determine whether the cluster installed in the vehicle includes the electronic components and instruments required for correct processing and display of the input signals generated in this particular vehicle. This instrument cluster test mode 5 available for troubleshooting, and should be carried out in response to any problems related to operation of the instrument cluster

To initiate the test mode:

^ Switch ignition ON.
^ Press the trip odometer button.
^ Switch ignition ON and OFF again while keeping the trip odometer button depressed.

The numbers and data for the selected function appear in the speedometer display panel. Continue to press the odometer reset button to proceed through the sequence of functions listed in the following table.

Troubleshooting - Checking Instrument Cluster (Part 1 Of 2):

Function of Test Mode Instrument Cluster

Checking Voltages, LED's and Bulbs on Instrument Cluster

NOTE:
- Use ammeter and/or digital multimeter Fluke 83 (US 7119) for all electrical checks.
- The connector names from test box VAG 1598 are identical with the contact names on the instrument cluster
- With a different value, check wiring harness according to wiring diagram.
- With values, replace components on instrument cluster.
- If the wiring loom is defective, it must not be repaired. Defective dash panel insert wiring looms must be replaced.

Test Conditions:
^ Battery voltage OK.
^ Fuses OK.
^ Use wiring diagram.

Preparation for Troubleshooting:
- Switch ignition Off.
- Remove multiple connector from instrument cluster.
- Instrument cluster and disconnected wiring harness connected with test box VAG 1598 and wiring adapter VAG 1598/8. (Connectors must snap with a click).

Troubleshooting - Checking Instrument Cluster (Part 2 Of 2):

Troubleshooting Procedure