26-Pin Connector, Blue
1 - Open
2 - Signal for buzzer
3 - Terminal 15
4 - Terminal 15
5 - Open
6 - Terminal 61
7 - Parking brake/brake system malfunction
8 - ABS (input signal)
9 - Airbag (input signal)
10 - CAT
11 - Open
12 - Open
13 - Parking light, right
14 - Ignition switch, S-contact
15 - Chime signal
16 - Open
17 - Open
18 - Oil pressure 1.8 bar
19 - Terminal 58d
20 - Coolant level
21 - Turn signal, right
22 - Headlight high beams
23 - Speedometer Vehicle Speed Sensor (VSS) (checking → Chapter)
24 - Brake fluid
25 - Brake pads
26 - Parking light, left

26-Pin Connector, Yellow

1 - Terminal 58
2 - Terminal 58
3 - Engine RPM signal
4 - Air conditioner compressor
5 - Clock (output)
6 - Speed signal 1
7 - Speed signal 2
8 - Door contact (driver's door)
9 - Terminal 30
10 - Terminal 30
11 - Open
12 - Fuel tank warning
13 - Turn signal, left
14 - Open
15 - Open
16 - Seat belt buckle switch
17 - Open
18 - Terminal 31
19 - Terminal 31
20 - Diagnostic wire
21 - Open
22 - Open
23 - Open
24 - Open
25 - Sender for fuel gauge
26 - Engine coolant temperature sensor