LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Isuzu >> 2002 >> Trooper LS, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1636: Powertrain Control Module Ram Stack >> Diagnostic Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Procedure

  1. Perform ON-BOARD DIAGNOSTIC II SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing OBD-II system check, go to next step.
  2. Turn ignition on. Install scan tool. Start and idle engine. Select DTC INFO on scan tool. If scan tool indicates DTC P1636 failed, go to next step. If scan tool indicates DTC P1636 did not fail, see DIAGNOSTIC AIDS .
  3. Using scan tool, clear DTC P1636. Start and idle engine. Select DTC INFO. If scan tool indicates DTC P1625 failed, go to next step. If scan tool indicates DTC P1636 did not fail, see DIAGNOSTIC AIDS .
  4. Check vehicle for aftermarket electronic devices, such as phones, alarms, etc. If an aftermarket device is incorrectly installed PCM may detect a false sensor reading. If problem is found, repair as necessary. After repair is complete, see VERIFYING VEHICLE REPAIR  under SELF-DIAGNOSTIC SYSTEM.
scientia non olet · About LEMON Manuals