Chart B-22 Rear Speed Sensor Missing (Dtc 63 (Flash Out) / C0236, C0237 (Serial Communications)) - Isuzu 1999 RODEO Workshop Manual

Chart B-22 Rear Speed Sensor Missing (DTC 63 (Flash out) / C0236, C0237 (Serial
communications))
Step
1 1. Turn the key off.
2. Disconnect coil integrated module connector.
3. Measure the Rear speed sensor resistance between coil
integrated module connector (C-4) terminals 4 and 12.
Is the resistance between 1.2k and 2.0k ohms?
2 Is there play sensor/sensor rotor?
3 Measure the rear speed sensor resistance at the sensor
connector.
Is the resistance between 1.2k and 2.0k ohms?
4 Damage and powered iron sticking to sensor/sensor ring?
5 Is sensor output normal? (Chart C-1-3 or TC-1)
6 1. Reconnect all components, ensure all components are
properly mounted.
2. Clear diagnostic trouble code.
Was this step finished?
NOTE: Even after repairing the faulty part the warning
light (W/L) does not go out if the vehicle is at a stop. Turn
the ignition switch to the ON position and drive the vehicle
at 12 km/h (8 mph) or higher to make sure that the
warning light goes out.
Action
BRAKE CONTROL SYSTEM
Yes
Go to Step 2
Repair.
Go to Step 6
Repair harness
abnormality
between sensors
and coil
integrated
module.
Go to Step 6
Repair.
Go to Step 6
Check for faults
in harness
between speed
sensor and coil
integrated
module.
Fault found:
repair, and
perform system
self-check.
No fault found:
replace EHCU.
Go to Step 6
Repeat the "Basic
diagnostic flow
chart"
5A–51
No
Go to Step 3
Go to Step 4
Replace sensor.
Go to Step 6
Go to Step 5
Replace sensor.
Go to Step 6
Go to Step 6