Nissan Skyline R34 workshop service manual page 24

text version of content this owner's manual page from owners manual to the vehicle Nissan Skyline, year of production 1998 - 2002:

TROUBLE DIAGNOSES Self-diagnosis (Cont'd) MALFUNCTiON INDICATOR LAMP (MIL) INDICATION Diagnostic test mode I - BULB CHECK 0 The malfunction indicator lamp bulb check is carried out when the ignition switch is turned ON (engine not started). The malfunction indicator lamp should come ON when the ignition switch is turned ON, and go OFF when the engine is I \ started. Malfunction indicator lamp Diagnostic test mode I - MALFUNCTION WARNING The system goes into the malfunction warning mode when any of the following conditions is satisfied, and warns the driver by light- ing up the malfunction indicator lamp in the combination meter. Microcomputer in the ECM control unit (CPU) is malfunction- ing. 1 Malfunction is detected during mass airflow sensor circuit self- diagnosis. Malfunction is detected during engine coolant temperature sensor circuit self-diagnosis. Malfunction is detected during vehicle speed sensor circuit self-diagnosis. Malfunction is detected during ignition signal circuit self-diag- nosis. Malfunction is detected during overheat self-diagnosis. Malfunction is detected during heated oxygen sensor circuit self-diagnosis. ~alfunsion is detected during throttle position sensor circuit self-diagnosis. Malfunction is detected during Turbo pressure sensor circuit self-diagnosis. [RB25DET model] Malfunction is detected during throttle motor sensor circuit self- diagnosis. [RB25DET model] Diagnostic test mode I1 - SELF-DIAGNOSTIC RESULTS Example: Blinking pattern for DTC "43" 0 This mode indicates the malfunctioning system(s) by the mal- function indicator lamp blinking pattern (indicating the DTC). 0 When no malfunction is detected, DTC "55" is indicated. ONh Diagnostic test mode II - HEATED OXYGEN SENSOR OFF MONITOR Approx. 8.7 S 0 This mode indicates status of the aidfuel ratio by blinks of the malfunction indicator lamp. Warm up the engine and increase and maintain the engine speed at 2,000 rpm. Check that the malfunction indicator lamp blinks at least five times in 10 seconds. During airlfuel ratio feedback control, when heated oxygen sensor output is high (rich): MIL goes OFF. when heated oxygen sensor output is low (lean): MIL comes OFF ON. (Rich) When aidfuel ratio feedback control is clamped: Status just before clamp is maintained. Duty ratio in 1 cycle 1 Lean: Al(A + B) x 100 When airifuel ratio feedback control is stopped: MIL goes OFF. Rich: B/(A + B) x 100 EFJ0041 C

owners manual Nissan Skyline

owners manual Nissan Skyline - year of production: 1998, 1999, 2000, 2001, 2002 - Nissan Skyline R34 workshop service manual EN