C193D

SUSPENSION CONTROL: ACTIVE STABILIZER SUSPENSION SYSTEM: C193D: Malfunction in Front Active Stabilizer Control ECU Local CAN Transmission

DTC C193D - Malfunction in Front Active Stabilizer Control ECU Local CAN Transmission

DESCRIPTION

The front active stabilizer control ECU and rear active stabilizer control ECU communicate through CAN communication (local CAN bus). If a problem occurs in the CAN communication system (local CAN), DTC C193D is stored.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT ACTIVE STABILIZER BATTERY CURRENT SENSOR
(a) Turn the engine switch off.
(b) Disconnect the E active stabilizer battery current sensor connector.

NG -- REPLACE ACTIVE STABILIZER BATTERY CURRENT SENSOR
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (REAR ACTIVE STABILIZER CONTROL ECU - ACTIVE STABILIZER BATTERY CURRENT SENSOR)
(a) Disconnect the z10 rear active stabilizer control ECU connector.
(b) Disconnect the E active stabilizer battery current sensor connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (CAN COMMUNICATION LINE)

(a) Disconnect the A49 front active stabilizer control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (CAN COMMUNICATION LINE)

(a) Disconnect the e1 rear active stabilizer control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (CAN COMMUNICATION LINE)

(a) Disconnect the A23 power steering ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (CAN COMMUNICATION LINE)

(a) Disconnect the A40 steering control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

7. CHECK OPERATION OF FRONT ACTIVE STABILIZER CONTROL ECU
(a) Turn the engine switch off.
(b) Exchange the front active stabilizer control ECU with the rear active stabilizer control ECU.
(c) Connect Techstream to the DLC3.
(d) Turn the engine switch on (IG) and press the Techstream main switch ON.
(e) Clear the DTC Active Stabilizer Suspension System.
(f) Check for DTC.

Result

A -- CHECK INTERMITTENT PROBLEMS
B -- REPLACE FRONT ACTIVE STABILIZER CONTROL ECU