Specifications

TROUBLESHOOTING
T229
T
CAR-NAVIGATION SYSTEM
A6E818066000W01
Troubleshooting Index
• Use the chart below verify the trouble in order to diagnose the appropriate area.
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NO.1 WHILE VEHICLE IS IN REVERSE, VEHICLE LOCATOR MARK GOES FORWARD.
A6E818066000W02
• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while
doing the inspection to discover whether poor contact points are the cause of any intermittent malfunction. If
there is a problem, check to make sure connectors, terminals and wiring harness are connected correctly and
undamaged.
Diagnostic procedure
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NO.2 IN NAVIGATION MODE, VEHICLE LOCATOR MARK SKIPS.
A6E818066000W03
TROUBLESHOOTING
No. Malfunction symptom
1 While vehicle is in reverse, vehicle locator mark goes forward.
2 In navigation mode, vehicle locator mark skips.
3
Even when headlight switch is turned on, daytime screen does not change to night time screen.
(Front and rear combination lights operate normally.)
1 While vehicle is in reverse, vehicle locator mark goes forward.
TROUBLESHOOTING HINTS
• Malfunction in shift position (R range (ATX) or revese position (MTX)) signal line of car-navigation unit.
 Car-navigation unit malfunction
 Malfunction in wiring harness between car-navigation unit and transaxle range switch
 Transaxle range switch malfunction
STEP INSPECTION ACTION
1 • While the vehicle is in reverse, are back-up
lights illuminated?
Yes Go to next step.
No Repair back-up light circuit, then go to next step.
2* • Disconnect car-navigation unit connector
(16-pin).
• Turn ignition switch to ON position.
• Shift selector lever to R range (ATX) or
revese position (MTX).
• Measure voltage at the following terminal of
car-navigation unit connector (16-pin,
harness side):
 Terminal 2L (Shift position (R range (ATX)
or revese position (MTX)) signal)
• Is voltage 9 V or more?
Yes Replace car-navigation unit (available at Clarion service
center) or get it repaired at Panasonic Service center, then
go to next step.
No
ATX
• Inspect wiring harness between car-navigation unit (16-
pin, terminal 2L) and transaxle range switch, then go to
next step.
MTX
• Inspect wiring harness between car-navigation unit (16-
pin, terminal 2L) and back-up light switch, then go to
next step.
3 • Does vehicle locator mark indicate actual
position of vehicle?
Yes Complete troubleshooting, then explain repairs to customer.
No Recheck malfunction symptoms, then repeat from Step 1 if
malfunction recurs.
2 In navigation mode, vehicle locator mark skips.
TROUBLESHOOTING HINTS
• Malfunction in vehicle speed signal line of car-navigation unit.
 Car-navigation unit malfunction
 ABS (ABS/TCS) HU/CM malfunction (with ABS (ABS/TCS))
 DSC HU/CM malfunction (with DSC)
 Malfunction in wiring harness between car-navigation unit and instrument cluster