Isuzu N-Series. Manual - part 268

5A4-46 ABS/ASR

DTC:C0234 (Flash Code 34) Motor Rotation Fault

Check flow B-8

Step

Action

Value

YES

NO

1

Replace the EHCU.

Is this step completed?

—

Go to Step2

Go to Step1

2

1. Install all the components, and check that

those are installed properly.

2. Clear the DTC.
3. Test run the vehicle.

Is this step completed?

—

Go to “Diagnostic 

basic flow”.

Go to Step2

ABS/ASR 5A4-47

DTC:C0235 (Flash Code 35) ASR Communication Line Fault/ASR Continuous Operation

Check flow B-9

Step

Action

Value

YES

NO

1

1. Check the tire.
2. Check if specified tires are attached.
3. Check for abnormal wear on the tire outer

surface.

Are the tires normal?

—

Go to Step2

Replace with the 

specified tire, and 

Go to Step2

2

Check the speed sensor.

(Check the sensor output by referring to the
check flow C-1-1

-C-1-4, or TC-1.)

Is the sensor output normal?

100 — 140

Ω

Go to Step3

Repair the faulty 

speed sensor, and 

Go to Step5

3

Check the engine control.

Is the engine control normal?

“Diagnosis 

with Blinking 

Pattern” No.1

Go to Step4

Repair the engine 

control, and Go to 

Step5

4

Replace the EHCU.

Is this step completed?

—

Go to Step5

Go to Step4

5

1. Install all the components, and check that

those are installed properly.

2. Clear the DTC.

Is this step completed?

—

Go to “Diagnostic 

basic flow”.

Go to Step5

5A4-48 ABS/ASR

DTC:C0241 (Flash Code 41) Fail-Safe Relay Fault

Check flow B-10

Step

Action

Value

YES

NO

1

1. Turn the starter switch OFF.
2. Disconnect the connector of the EHCU.
3. Turn the starter switch ON.
4. Measure the voltage between the J-177

connector terminal 2 and the J-177 con-
nector terminal 1.

Is the value within specified value?

16.5 — 34V

Go to Step6

Go to Step2

2

Repair the circuit between the J-177 connec-
tor terminal 2 and the FL-9.

Is this step completed?

—

Go to Step3

Go to Step2

3

Measure the voltage between the J-177 con-
nector terminals 2 and 1.

Is the value within specified value?

16.5 — 34V

Go to Step7

Go to Step4

4

Repair the harness between the J-177 con-
nector terminal 1 and the chassis ground.

Is this step completed?

—

Go to Step5

Go to Step4

5

Measure the voltage between the J-177 con-
nector terminals 2 and 1.

Is the value within specified value?

16.5 — 34V

Go to Step7

Go to Step5

6

Replace the EHCU.

Is this step completed?

—

Go to Step7

Go to Step6

7

1. Install all the components, and check that

those are installed properly.

2. Clear the DTC.
3. Test run the vehicle.

Is this step completed?

—

Go to “Diagnostic 

basic flow”.

Go to Step7

ABS/ASR 5A4-49

DTC:C0243 (Flash Code 43) Solenoid Drive Circuit Fault

Check flow B-11

Step

Action

Value

YES

NO

1

Replace the EHCU.

Is this step completed?

—

Go to Step2

Go to Step1

2

1. Install all the components, and check that

those are installed properly.

2. Clear the DTC.
3. Test run the vehicle.

Is this step completed?

—

Go to “Diagnostic 

basic flow”.

Go to Step2