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?
—
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”.
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?
—
Replace with the
specified tire, and
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
Repair the faulty
speed sensor, and
3
Check the engine control.
Is the engine control normal?
“Diagnosis
with Blinking
Pattern” No.1
Repair the engine
control, and Go to
4
Replace the EHCU.
Is this step completed?
—
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”.
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
2
Repair the circuit between the J-177 connec-
tor terminal 2 and the FL-9.
Is this step completed?
—
3
Measure the voltage between the J-177 con-
nector terminals 2 and 1.
Is the value within specified value?
16.5 — 34V
4
Repair the harness between the J-177 con-
nector terminal 1 and the chassis ground.
Is this step completed?
—
5
Measure the voltage between the J-177 con-
nector terminals 2 and 1.
Is the value within specified value?
16.5 — 34V
6
Replace the EHCU.
Is this step completed?
—
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”.
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?
—
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”.
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