DTC B1317/B1318 [POWER RETRACTABLE HARDTOP]

id0902j2350700

DTC

B1317

Battery power supply voltage increases (17.5 V or more)

B1318

Battery power supply voltage decreases (less than 7.5 V)
DETECTION CONDITION
•  If the power retractable hardtop control module power supply voltage is not within 7.5—17.5 V.
Note
•  The system recovery condition after detecting DTC B1317/1318 is that the battery voltage is in the 8.5—16.5 V range. Verify that the battery voltage is 8.5—16.5 V when inspecting.
POSSIBLE CAUSE
•  ROOM 15 A fuse malfunction
•  Battery malfunction
•  Open or short circuit in wiring harness between battery and power retractable hardtop control module
•  Power retractable hardtop control module malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT THE FUSE
•  Remove the ROOM 15 A fuse.
•  Is the fuse normal?
Yes
Go to the next step.
No
Replace the fuse.
2
INSPECT THE BATTERY
•  Measure the battery positive voltage.
•  Is the voltage 8.5 V—16.5 V?
Yes
Go to the next step.
No
The battery has a malfunction. Inspect the charge/discharge system.
3
INSPECT WIRING HARNESS BETWEEN BATTERY AND POWER RETRACTABLE HARDTOP CONTROL MODULE
•  Turn the ignition switch to the ON position.
•  Measure the power retractable hardtop control module terminal 1X voltage.
•  Is the voltage 8.5 V—16.5 V?
Yes
Replace the power retractable hardtop control module.
(See POWER RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
No
DTC troubleshooting completed.