Chart C-2 Transmission Input Inspection Procedure - Isuzu 2000 Trooper Workshop Manual

5A–44
BRAKE CONTROL SYSTEM

Chart C-2 Transmission Input Inspection Procedure

Step
1 1. Turn the key off.
2. Disconnect EHCU connector.
Is there continuity between EHCU connector terminals 6 and 15
(Gear position-P(A/T), N(M/T))?
2 Is the vehicle an A/T model?
3 Turn the key on and measure voltage between EHCU connector
terminals 6 and 15.
Is there less than 6V when the gear position is L, and R(Battery
voltage 12V)?
4 Turn the key on and measure the voltage between EHCU
connector terminal 6 and 15.
Is there more than 9.6V when the gear position is 1, 2, R(Battery
voltage 12V)?
5 Measure the voltage between EHCU connector terminals 6 and
15.
Is there 6.6 to 9.0V when the gear position is 3, 4, 5 and N(M/T) or
2,3,D,N and P(A/T)(Battery voltage 12V)?
6 1. Reconnect all components and ensure all components are
properly mounted.
2. Clear diagnostic trouble code.
Was this step finished?
Action
Yes
Shorted switch
harness.
Repair switch or
harness.
Go to Step 2
Go to Step 6
Go to Step 3 Go to Step 4
Transmission SW
Disconnected
Repair SW and
Go to Step 5
Go to Step 6
Transmission SW
Disconnected
Repair SW and
Go to Step 5
Go to Step 6
Transmission SW
Disconnected
Repair SW and
Go to Step 6
Go to Step 6
Repeat the "Basic
diagnostic flow
chart." Go to Step 6
No
trouble.
harness.
harness.
trouble.
harness.
harness.
trouble.
harness.
harness.