|
|
5 CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Check harness continuity between ECM terminal 89 and PSP sensor terminal 2. Continuity should exist. 2. Also check harness for short to ground and short to power. OK or NG OK © GO TO 6. NG © Repair open circuit or short to ground or short to power in harness or connectors. 6 CHECK PSP SENSOR Refer to “Component Inspection”, EC-441. OK or NG OK © GO TO 7. NG © Replace PSP sensor. 7 CHECK INTERMITTENT INCIDENT Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-152. © INSPECTION END SEC049D Component Inspection NHEC1257 POWER STEERING PRESSURE SENSOR Reconnect all harness connectors disconnected. 2. Start engine and let it idle. 3. Check voltage between ECM terminal 89 and ground under Condition Voltage Steering wheel is turned fully. Approximately 0.5 - 4.0V Steering wheel is not turned. Approximately 0.4 - 0.8V GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX DTC P0550 PSP SENSOR Diagnostic Procedure (Cont’d) EC-441 |