IQ PLUS SYSTEM DISPLAY MODULE (IQDM SERIES 2) DIAGNOSTICS
Test Procedures
Page 12-16
2006 IQ Plus System Electric Vehicle Maintenance and Service Supplement
12
TEST PROCEDURES
The following test procedures enable the technician to test the IQDM-P Series 2 handset and the components
of the IQ Plus System vehicle that are related to the proper operation of the handset. This diagnostics section
does not contain detailed information for troubleshooting the vehicle. Refer to the vehicle maintenance and
service manual for detailed vehicle troubleshooting and service procedures.
ý
WARNING
• If wires are removed or replaced, make sure wiring and wire harness is properly routed and
INDEX OF TEST PROCEDURES
Display screen shows jumbled or
undecipherable characters
See Section 11 – Electrical System and
Testing.
Handset malfunction
Disconnect the IQDM cord from the
vehicle. Wait a few seconds and
reconnect the handset to the vehicle
Loose connection at IQDM jack
Test Procedure 3 – IQDM Jacks on
page 12-17
Intermittent handset cord failure
Test Procedure 1 – Handset Cord on
page 12-17
Intermittent handset cord adaptor failure
Test Procedure 2 – Handset Cord Adaptor
on page 12-17
Loose vehicle wire harness connections
Test Procedure 3A – IQDM Jack (When
Located on Vehicle F&R Switch) on
page 12-18
Handset is “locked-up” – buttons do
not respond
Vehicle batteries – loose terminals or
corrosion
Vehicle batteries – improperly wired
Vehicle batteries – batteries failed
Vehicle batteries – batteries not fully
charged
See Section 11 – Electrical System and
Testing.
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION