Pinout Values and Diagnostic Parameters

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU
NOTICE:
- Turn the ignition switch off before measuring the resistances of the CAN main wire and the CAN branch wire.
- After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.
- Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
HINT: Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

1. JUNCTION CONNECTOR





(a) D-CAN Junction Connector





*1: w/ ABS
*2: w/ Air conditioning or PTC heater

2. JUNCTION CONNECTOR





(a) P-CAN Junction Connector






(b) Wiring diagram for identifying CAN junction connectors









3. DLC3
(a) Turn the ignition switch off.
(b) Measure the resistance according to the value(s) in the table below.






4. BRAKE ACTUATOR (SKID CONTROL ECU)
HINT: For vehicle with ABS only.

(a) for Hatchback:




(1) Turn the ignition switch off.
(2) Disconnect the A15 brake actuator (skid control ECU) connector.
(3) Measure the resistance according to the value(s) in the table below.

Standard resistance





(b) for Sedan:




(1) Turn the ignition switch off.
(2) Disconnect the A15 brake actuator (skid control ECU) connector.
(3) Measure the resistance according to the value(s) in the table below.

Standard resistance





5. ECM





(a) Turn the ignition switch off.

(b) Disconnect the A21 and C20 ECM connectors.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance





6. CENTER AIRBAG SENSOR ASSEMBLY





(a) Turn the ignition switch off.

(b) Disconnect the D16 center airbag sensor assembly connector.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance





7. AIR CONDITIONING AMPLIFIER
HINT: For vehicle with air conditioning or PTC heater only.





(a) Turn the ignition switch off.

(b) Disconnect the E8 air conditioning amplifier connector.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance





8. MAIN BODY ECU









(a) Turn the ignition switch off.
(b) Disconnect the D33, 4B and 4E main body ECU connectors.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance





9. COMBINATION METER ECU





(a) Turn the ignition switch off.

(b) Disconnect the D1 combination meter ECU connector.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance





10. POWER STEERING ECU





(a) Turn the ignition switch off.

(b) Disconnect the A19 and D31 power steering ECU connectors.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance