Chart B-10 Ehcu Valve Relay Failure (Dtc 35 (Flash Out) / C0265, C0266 (Serial Communications)); Chart B-11 Fl Isolation Solenoid Coil Failure (Dtc 41 (Flash Out) / C0245, C0247 (Serial Communications)); Chart B-12 Fl Dump Solenoid Coil Failure (Dtc 42 (Flash Out) / C0246, C0248 (Serial Communications)) - Isuzu 1999 RODEO Workshop Manual

BRAKE CONTROL SYSTEM
5A–44
Chart B-10 EHCU Valve Relay Failure (DTC 35 (Flash out) / C0265, C0266 (Serial
communications))
Step
1 1. Turn the key off.
2. Disconnect coil integrated module connector.
3. Measure the voltage between terminal 1 of the coil integrated
module connector (C-5) and body ground.
Is the voltage equal to the battery voltage?
2 1. Reconnect all components, ensure all components are
properly mounted.
2. Clear diagnostic trouble code.
Was this step finished?
Chart B-11 FL Isolation Solenoid Coil Failure (DTC 41 (Flash out) / C0245, C0247 (Serial
communications))
Step
1 Was the "EHCU Connector Pin–out Checks" performed?
2 1. Turn the key switch to off.
2. Disconnect the 2–way EHCU connector (C–5) from the
EHCU.
3. Inspect the connector for damage or corrosion.
Is the connector free from damage or corrosion?
3 1. Replace the Coil Integrated Module.
2. Reconnect all component, ensure all components are properly
mounted.
Was this step finished?
Chart B-12 FL Dump Solenoid Coil Failure (DTC 42 (Flash out) / C0246, C0248 (Serial
communications))
Step
1 Was the "EHCU Connector Pin–out Checks" performed?
2 1. Turn the key switch to off.
2. Disconnect the 2–way EHCU connector (C–5) from the
EHCU.
3. Inspect the connector for damage or corrosion.
Is the connector free from damage or corrosion?
3 1. Replace the Coil Integrated Module.
2. Reconnect all component, ensure all components are properly
mounted.
Was this step finished?
Action
Action
Action
Yes
Repair fuse and
harness coil
integrated
module connector
(C-5) terminal 1
Replace EHCU.
and battery.
Go to Step 2
Go to Step 2
Repeat the "Basic
diagnostic flow
chart" Go to Step 2
Yes
Go to "EHCU
Connector
Go to Step 2 Pin–out Checks."
Repair the
connector.
Repeat the "Basic
Diagnostic Flow
Go to Step 3
Repeat the "Basic
diagnostic flow
chart" Go to Step 3
Yes
Go to "EHCU
Connector
Go to Step 2 Pin–out Checks."
Repair the
connector.
Repeat the "Basic
Diagnostic Flow
Go to Step 3
Repeat the "Basic
diagnostic flow
chart" Go to Step 3
No
No
Chart."
No
Chart."