Intermittent Failures
The term "intermittent failure" means a system may
have had a failure, but it checks OK now. If the
malfunction indicator lamp (MIL) on the dash does not
come on, check for poor
Electronic Control System
The functions of the fuel and emission control systems are managed by the
powertrain control module (PCM).
Self-diagnosis
The PCM detects a failure of a signal from a sensor
1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle. Drive the vehicle at 10 mph
(15 km/h) or more, with the engine speed at
2,500 rpm or more.
4. Check for DTCs with the HDS.
Is DTC 51 indicated?
YES-Replace the VSA modulator-control unit.
NO-Intermitt
Component Location Index
POWER STEERING PRESSURE (PSP) SWITCH
Signal Circuit Troubleshooting
A/C COMPRESSOR
CLUTCH RELAY
(RELAY SOCKET A)
Signal Circuit Troubleshooting
POWERTRAIN CONTROL
MODULE (PCM)
General Troubleshooting Information
Replacement
A/C