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CCS-244 < DTC/CIRCUIT DIAGNOSIS > [DCA] C1A13 STOP LAMP RELAY NO >> Repair the harnesses or connectors. 18. CHECK ICC BRAKE HOLD RELAY 1. Connect ECM, rear combination lamp, and high-mounted stop lamp connectors and ICC brake hold relay. 2. Disconnect the stop lamp switch connector. 3. Turn ignition switch ON. 4. Perform “STOP LAMP” on “Active Test” of “ICC”, and then check the stop lamp for illumination. Is the inspection result normal? YES >> GO TO 19. NO >> Replace ICC brake hold relay. 19. CHECK ICC BRAKE SWITCH STANDARD VOLTAGE 1. Turn ignition switch OFF. 2. Connect the stop lamp switch connector. 3. Turn ignition switch ON. 4. Perform “STOP LAMP” on “Active Test” of “ICC”, and then check the voltage between ICC brake switch Is the inspection result normal? YES >> GO TO 20. NO >> Replace ICC brake hold relay. 20. PERFORM SELF-DIAGNOSIS OF ECM 1. Connect all connectors again if the connectors are disconnected. 2. Turn ignition switch ON. 3. Perform “All DTC Reading”. 4. Check if any DTC is detected in “Self Diagnostic Result” of “ENGINE”. Refer to (VK50VE). Is any DTC detected? YES >> Repair or replace the malfunctioning parts identified by the self-diagnosis result. NO >> GO TO 21. 21. CHECK ICC BRAKE HOLD RELAY DRIVE SIGNAL OUTPUT 1. Select the active test item “STOP LAMP” of “ICC”. 2. Check that “STP LMP DRIVE” is turned ON when operating the test item. Is the inspection result normal? YES >> Replace brake booster control unit. NO >> Replace the ICC sensor integrated unit. Refer to Component Inspection INFOID:0000000005501833 1. CHECK ICC BRAKE HOLD RELAY Terminal Condition Voltage (Approx.) (+) (–) ICC brake switch Ground Active Test item “STOP LAMP” Connector Terminal E114 1 Off Battery On 0 V |