Daewoo KORANDO Service Manual page 1219

Error of signal in engine throttle position ; fault
code 1715, 1716
Phenomenon
1. Upon diagnosis by SCAN-100, it display on 1715,
1716 codes.
Cause
1. Bad communication line between E/G ECU and CAN.
2. Defect of TOD control unit.
3. Defect of E/G ECU.
Stage
Check connection status of connector through CAN
communication line.
1. Check connection of connector.
- Does connector connect correctly between TOD
control unit and E/G ECU?
2. In case of bad connection, connect correctly then
B1 perform the follows ;
a. Delete the memorized fault code using SCANNER.
b. Ignition "OFF".
c. Ignition "ON".
d. Diagnose by SCANNER.
- Does it display fault codes "1715" or "1716".
Check connection status of CAN communication line towards
E/G ECU.
1. Ignition "OFF".
2. Disconnect 30 pin connector towards TOD control unit.
3. Measure resistance between pin No.22 and 23 in wiring
connector using multi-tester.
B2
- Specified value
- Measured value is within specified range?
Check connection status of CAN communication line towards
TOD control unit.
1. Ignition "OFF".
2. Disconnect coupling of E/G ECU (gray, 1-60 pin).
3. Measure resistance between pin No.37 and 38 in
B3
coupling using multi-tester.
- Specified value
- Measured value is within specified range?
Test Stage / Contents
Test Contents and Procedure
TRANSFER CASE (TOD) 5D2-21
Result
Countermeasure
Specified Value
/Yes/No
Yes Perform B2 stage
No Perform B1-2 stage
Yes Perform B2 stage
No Normal system
115-125W
Yes Perform B3 STAGE
No Perform B4 stage,
check and replace E/
G ECU
115-125W
Yes Perform B5 STAGE
Replace TOD control
No
unit