LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 1999 >> Vitara JS, 2D Utility, 1.6, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1510: Pcm Backup Power Supply Malfunction
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P1510: Pcm Backup Power Supply Malfunction

  1. Turn ignition on. Using DVOM, measure voltage between ground and PCM harness connector terminal E61-2. See PIN VOLTAGE/CIRCUIT RESISTANCE CHARTS article for PCM connector and terminal identification. If voltage is 10-14 volts, check for poor PCM harness connections or intermittent problem. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES. If connections are okay and no intermittent problems were found, replace PCM and retest system. If voltage is not as specified, go to next step. Retest system.
  2. Check condition of fuses in passenger compartment and underhood fuse boxes. If fuse(s) are blown, check for short circuit and repair as necessary. If fuse(s) are okay, check for an open in White wire between PCM and fuse box. Check for open in White/Yellow wire between fuse box in passenger compartment and relay/fuse box in engine compartment. Repair as necessary.
scientia non olet · About LEMON Manuals