LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2001 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 1.8L >> Self-Diagnostic System >> Powertrain Diagnostic System Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Powertrain Diagnostic System Check

NOTE: Check for applicable Technical Service Bulletins (TSBs) before proceeding. DO NOT perform the following procedure if driveability conditions are not present. DO NOT turn ignition off during the following procedure or clear DTCs unless instructed to do so.
  1. Install scan tool. Turn ignition on, with engine off. Observe scan tool. If scan tool turns on, go to next step. If scan tool does not turn on, perform SCAN TOOL DOES NOT POWER UP in appropriate BODY CONTROL MODULES article.
  2. Using scan tool, attempt to establish communication with PCM. If scan tool communicates with all the control modules, go to next step. If scan tool does not communicate with any of the control modules, perform SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE in appropriate ACCESSORIES & EQUIPMENT.
  3. Attempt to start engine. If engine starts and idles, go to next step. If engine does not start, go to NO START diagnosis in appropriate BASIC DIAGNOSTIC PROCEDURES article.
  4. Using scan tool, select DTC Information. If scan tool displays any PCM related DTCs, go to next step. If scan tool does not display any PCM related DTCs, go to step  7.
  5. Using scan tool, select Captured Info in order to store PCM DTC information. After storing DTC information, go to next step.
  6. If DTC P1600 is set, go to DTC P1600 . If DTC P1600 is not set, go to next step.
  7. If problem is transmission related, diagnose transmission. If problem is not transmission related, go to next step.
  8. If problem is I/M testing related, go to INSPECTION/MAINTENANCE SYSTEM CHECK  under INSPECTION/MAINTENANCE PROCEDURES. If problem is not I/M testing related, go to next step.
  9. Check for cause of hard start, surges/chuggles, lack of power, sluggishness, or sponginess. Check for cause of detonation/spark knock, hesitation, sag, stumble, cuts out, misses, poor fuel economy, rough/unstable, or incorrect idle and stalling. Check for cause of dieseling, run-on, backfire, MIL inoperative, or MIL always on. Repair as necessary. If no problem is found, problem is intermittent.
scientia non olet · About LEMON Manuals