TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the CAB connector.
Note: Check connector - Clean/repair as necessary.
Start the engine.
Raise engine speed above 1,800 RPM’s
Measure the voltage between Fused Ignition Switch Output (RUN) circuit and
ground.
Is the voltage above 16.5 volts ?
All
Yes
→ Refer to appropriate service information for Charging System
testing and repair.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the CAB connector.
Note: Check connector - Clean/repair as necessary.
Inspect the CAB and CAB harness connector for damage.
Is there any broken, bent, pushed out, corroded, or spread terminals?
All
Yes
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the CAB connector.
Note: Check connector - Clean/repair as necessary.
Using a 12-volt test light connected to 12-volts, probe the Ground circuits.
Does the test light illuminate?
All
Yes
→ Go To 6
No
→ Repair the Ground circuit for an open.
Perform ABS VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Reconnect the CAB harness connector.
Turn the ignition on.
With the DRBIII
t in Sensors, read the ignition voltage.
Does the DRBIII
t display ignition voltage above 16 volts?
All
Yes
→ Replace the Controller Antilock Brake in accordance with the
Service Information.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 7
29
BRAKES (20E)
SYSTEM OVER VOLTAGE —
Continued