Chart B-15 Rear Dump Solenoid Valve Abnormality (Dtc 46); Chart B-16 Fl Speed Sensor Disconnection (Dtc 51) - Isuzu 2000 Trooper Workshop Manual

Chart B-15 Rear Dump Solenoid Valve Abnormality (DTC 46)

Step
1 Was the "EHCU Connector Pin–out Checks" perfomed?
2 Is the EHCU connector free from damage or corrosion?
3 1. Replace the EHCU.
2. Reconnect all component, ensure all component are properly
mounted.
Was this step finished?

Chart B-16 FL Speed Sensor Disconnection (DTC 51)

Step
1 1. Turn the key off.
2. Disconnect EHCU connector.
3. Measure the resistance between EHCU connector terminals
20 and 21.
Is the resistance between 1.3k and 1.9k ohms?
2 Measure the FL speed sensor resistance at the sensor connector.
Is the resistance between 1.3k and 1.9k ohms?
3 1. Reconnect all components, ensure all components are
properly mounted.
2. Clear diagnostic trouble code.
Was this step finished?
Action
Action
BRAKE CONTROL SYSTEM
Yes
Go to Step 2
Go to Step 3
Repeat the "Basic
Diagnostic Flow
Chart".
Yes
Check for faults
in harness
between speed
sensor and
EHCU.
Fault found:
Repair, and
perform system
self-check.
No fault found:
Replace EHCU.
Go to Step 3
Repair harness
abnormality
between sensors
and EHCU.
Go to Step 3
Repeat the "Basic
diagnostic flow
chart."
5A–33
No
Go to "EHCU
Connector
Pin-out Checks".
Repair the
connector.
Repeat the "Basic
Diagnostic Flow
Chart".
Go to Step 3
No
Go to Step 2
Replace sensor.
Go to Step 3
Go to Step 3