DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerB1XXX air bag diagnosis sensor unit
Description
DTC B1XXX AIR BAG DIAGNOSIS SENSOR UNIT
The air bag diagnosis sensor unit will run self diagnostics when the ignition
switch is turned ON. It has thepotential to set many diagnostic trouble
codes which will conform to the B1XXX format, but will not match anyother
SRS diagnostic t ...
Switch operation
Type A (if so equipped)
The windshield wiper and washer operates when
the ignition switch is placed in the ON position.
Push the lever down to operate the wiper at the
following speed:
Intermittent (INT) or (AUTO) - intermittent
operation can be adjusted by turning the
knob A .
L ...
DTC/circuit diagnosis
MAIN LINE BETWEEN DLC AND HVAC CIRCUIT
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
ECM
A/C auto amp.
Check the continuity betw ...