Engine Control Module (Powertrain Control Module) Replacement
WARNING: This page is about a different car, the 2002 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
When ECM (PCM) is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until adaptation systems have completed a relearn cycle. See SUZUKI
in COMPUTER RELEARN PROCEDURES article under GENERAL INFORMATION before disconnecting battery.
When substituting a known-good ECM (PCM), check for following conditions. Neglecting this check may cause damage to a known-good ECM (PCM).
- Resistance value of all relays and actuators. See SENSOR OPERATING RANGE CHARTS article.
- Manifold Absolute Pressure (MAP) sensor, Throttle Position (TP) sensor and Fuel Tank Pressure (FTP) sensor are in good condition, and power and ground circuits of these sensors are not shorted.