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

1. Turn the engine switch off.
2. Disconnect the E active stabilizer battery current sensor connector.
   Fig 1: Identifying Active Stabilizer Battery Current Sensor Connector Terminal

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3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   2 (BSV) - 4 (BSG)	Always	3 to 10 kΩ
   2 (BSV) - 3 (BSC)	Always	Below 0.5 kΩ
   3 (BSC) - 4 (BSG)	Always	3 to 10 kΩ
   1 (BST) - 4 (BSG)	Always	1.5 to 2.5 kΩ

NG → REPLACE ACTIVE STABILIZER BATTERY CURRENT SENSOR 

OK: Go to next step 

1. Disconnect the z10 rear active stabilizer control ECU connector.
2. Disconnect the E active stabilizer battery current sensor connector.
   Fig 2: Identifying z10 Rear Active Stabilizer Control ECU Connector Terminal

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3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   z10-4 (BSC) - E-3 (BSC)	Always	Below 1 Ω
   z10-4 (BSC) or E-3 (BSC) - Body ground	Always	10 kΩ or higher
   z10-3 (BSV) - E-2 (BSV)	Always	Below 1 Ω
   z10-3 (BSV) or E-2 (BSV) - Body ground	Always	10 kΩ or higher
   z10-6 (BSG) - E-4 (BSG)	Always	Below 1 Ω
   z10-6 (BSG) or E-4 (BSG) - Body ground	Always	10 kΩ or higher
   z10-5 (BST) - E-1 (BST)	Always	Below 1 Ω
   z10-5 (BST) or E-1 (BST) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 3: Identifying A49 Front Active Stabilizer Control ECU Connector Terminal

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1. Disconnect the A49 front active stabilizer control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   A49-1 (LCN+) - A49-8 (LCN-)	Engine switch off	54 to 69 Ω
   A49-2 (CANH) - A49-3 (CANL)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 4: Identifying e1 Rear Active Stabilizer Control ECU Connector Terminal

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1. Disconnect the e1 rear active stabilizer control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   e1-1 (LCN+) - e1-8 (LCN-)	Engine switch off	54 to 69 Ω
   e1-2 (CANH) - e1-3 (CANL)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 5: Identifying A23 Power Steering ECU Connector Terminal

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1. Disconnect the A23 power steering ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   A23-1 (CAN+) - A23-8 (CAN-)	Engine switch off	54 to 69 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 6: Identifying A40 Steering Control ECU Connector Terminal

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1. Disconnect the A40 steering control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   A40-4 (CAN+) - A40-9 (CAN-)	Engine switch off	54 to 69 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Turn the engine switch off.
2. Exchange the front active stabilizer control ECU with the rear active stabilizer control ECU.
3. Connect Techstream to the DLC3.
4. Turn the engine switch on (IG) and press the Techstream main switch ON.
5. Clear the DTC. Refer to DTC CHECK / CLEAR .
6. Check for DTC.
   RESULT
   
   

   Result	Proceed to
   DTC C1916 is output	A
   DTC is not output	B

A → CHECK INTERMITTENT PROBLEMS 

B → See step   8