General Information
Generial Information for Test Mode 1,2 and 4
General
To make fault-tracing easier, there is a diagnostic system with:
Test mode 1
- For reading off stored faults. Up to 47 different faults can be stored.
Test mode 2
- To check signals from solar sensor and speedometer.
Test mode 4
- To check electrical circuits in A/C system, reset information on damper limit positions and change transmission speed.
Note! Switch off ignition before switching from one test mode to another.
The ECC control unit is connected to diagnostic unit B position 1. If a fault occurs which is detected by test mode 1, a fault signal is issued which involves the - rec and - ac off - indicator lights flashing for about 20 seconds.
A fault warning is given immediately if a fault is discovered during setting, and also each time the ignition is switched on or the engine started. If a fault code is stored because of a temporary fault which then clears, no fault signal is given when the ignition is switched on or the engine starts.