TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Install a substitute CMTC/EVIC Module in place of the original module.
With the DRBIII
t, erase DTCs.
Turn the ignition on.
Cycle the ignition on and off, leaving the ignition in the on position for at least 15
seconds each time.
With the DRBIII
t, read DTCs.
Did the DTC reset?
All
Yes
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the CMTC/EVIC Module.
Perform BODY VERIFICATION TEST - VER 1.
4
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
All
Yes
→ Repair as necessary
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
748
OVERHEAD CONSOLE
OTIS MODULE MESSAGE MISMATCH —
Continued