Lexus NX: Open Circuit in Power Source Circuit (C13A0,C13A5,C13B0)
DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
| C13A0 | Open Circuit in Power Source Circuit | Both of following conditions are met: -
Power switch on (IG) or electric parking brake switch (integration control and panel assembly) pulled to lock side with power switch off.
-
Parking brake ECU assembly's power source relay is open for approx. 0.5 sec.
| -
Parking brake actuator assembly
-
Parking brake ECU assembly
| Yes | An electric parking brake system malfunction is displayed on the multi-information display. |
| C13A5 | Electric Current of Motor | Both of following conditions are met: -
Power switch on (IG) or electric parking brake switch (integration control and panel assembly) pulled to lock side with power switch off.
-
Parking brake ECU assembly's internal current is abnormal for approximately 0.1 to 0.5 seconds (differs according to malfunction contents).
| -
Parking brake actuator assembly
-
Parking brake ECU assembly
| Yes | An electric parking brake system malfunction is displayed on the multi-information display. |
| C13B0 | Electric Parking Brake ECU Malfunction | Both of following conditions are met: -
Power switch on (IG) or electric parking brake switch (integration control and panel assembly) pulled to lock side with power switch off.
-
Internal current of parking brake ECU assembly or ECU components abnormal for a maximum of 60 seconds (differs according to malfunction contents).
| -
Parking brake actuator assembly
-
Parking brake ECU assembly
| Yes | An electric parking brake system malfunction is displayed on the multi-information display. |
CAUTION / NOTICE / HINT
NOTICE:
When replacing the parking brake ECU assembly, operate the electric parking brake switch (integration control and panel assembly), as the parking brake indicator light (red) blinks when the power switch is first turned on (IG).
PROCEDURE
| 1. | INSPECT PARKING BRAKE ACTUATOR ASSEMBLY |
(a) Inspect the parking brake actuator assembly.
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| NG | | REPLACE PARKING BRAKE ACTUATOR ASSEMBLY |
|
OK | | |
| 2. | REPLACE PARKING BRAKE ECU ASSEMBLY |
(a) Replace parking brake ECU assembly.
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| NEXT | | END |
READ NEXT:
DESCRIPTION The following DTCs are stored when a malfunction occurs in the parking brake ECU assembly. DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13A1
DESCRIPTION When the power switch is turned on (IG), power is supplied to the parking brake ECU assembly. This DTC is stored if the IG power source is not input to the parking brake ECU assembly when
DESCRIPTION When the electric parking brake switch (integration control and panel assembly) is pulled to the lock side, a lock request signal is output to the parking brake ECU assembly. DTC No.
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