Engine Controls - Trouble Shooting - No-Codes: Overview Suzuki Vitara I

During A/C Operation (Aerio)

1. With A/C on. Check A/C signal circuit. See «A/C SIGNALS CIRCUIT CHECK»(ref-158706-S16779344502003101500000) under MISCELLANEOUS CONTROLS in SYSTEM & COMPONENT TESTING article.

During P/S Operation (Aerio)

1. With wheels turned, check P/S signal circuit. See «POWER STEERING PRESSURE SWITCH CIRCUIT CHECK»(ref-158706-S16889872002003101500000) under MISCELLANEOUS CONTROLS in SYSTEM & COMPONENT TESTING article.
2. Faulty spark plugs. See «IGNITION CHECKS»(ref-157312-S13761354832003080800000) in BASIC DIAGNOSTIC PROCEDURES article.
3. Faulty ignition coil. See «IGNITION CHECKS»(ref-157312-S13761354832003080800000) in BASIC DIAGNOSTIC PROCEDURES article.
4. Fuel pressure out of specification. See «FUEL PRESSURE»(ref-158706-S42048808762003101500000) under FUEL SYSTEM in SYSTEM & COMPONENT TESTING article.

See also:
• ON-VEHICLE ADJUSTMENTS
• THROTTLE POSITION SENSOR
• IGNITION TIMING