Kia Sorento 2001 General Information Manual page 1112

2001 > 1.8L DOHC >
Troubleshooting
Rear defroster Does Not Operate.
Preliminary Check:
Check for rear defroster relay and "DEFOG (20A)" and "MIRROR DEF (10A)" fuse. If open, check for short to
ground though the wire and replace fuse and relay. In addition, check that all system electrical connectors
mated correctly.
Step
Connect for voltage at terminal B(R) of ETWIS connector
1 I-01.
Is battery voltage present.
Turn the ignition switch to ON position.
2 Check for voltage at terminal M(Y) of ETWIS connector I-01.
Is battery voltage present.
Check for continuity at terminal S(B) of ETWIS connector
3 I-01 to ground.
Is continuity present?
Check for continuity between terminal B(B) of rear defroster
4 switch connector I-17 and ground.
Is continuity present?
With pressed rear defroster switch, check for continuity
between terminal A(Y/G) of rear defroster connector I-17and
5
ground.
Is continuity present?
With pressed rear defroster switch, check for continuity
6 between terminal A(Y/G) of ETWIS I-01 and ground.Is
continuity present?
Press rear defroster switch once. Check for continuity
7 between terminal P(P) of ETWIS I-01 and ground.Is
continuity present?
Check for voltage at following terminals.
Is battery voltage present respectively?
8
Check for continuity between following terminals and ground.
9
Inspection Action
Yes Go to next step
Repair open or short in the
No wire "R" or replace as
necessary.
Yes Go to next step
Repair open or short in the
No wire "Y" or replace as
necessary.
Yes Go to next step
Check for a poor connection
No at ground. If OK, repair or
replace B wire.
Yes Go to next step
Check for a poor connection
No at ground. If OK, repair open
in the wire "B" or replace.
Yes Go to next step
Check for a poor connection
at rear defroster switch.
No
If OK, replace the rear
defroster switch.
Yes Go to next step
Repair open or short in the
No
wire "Y/G" or replace.
Yes Go to next step
Check for a poor connection
No at ETWIS. If OK, repair open
in the wire "P" or replace.
Inspection rear defroster grid
Yes
and go to next step.
Repair open or short in the
No wire "R/W" or/and "R/B" or
replace.
Yes Inspect mirrror defroster.