Many malfunctions in the electrical system may caused from poor harness and terminals. These faults can be caused by interference from other electrical systems and mechanical or chemicaldamage.
Check the following conditions:
Check for damaged harness and terminals: contact resistance, oxidation, bent or broken terminals.
Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks and poor terminal to wire connection
Using a suitable male pin to ensure that contact in sockets is good. The pin should remain in position when pulled gently.
Has a problem been found?
YES
Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
System OK. Go to "Verification of Vehicle Repair" procedure
Turn ignition switch to OFF and disconnect CKPS connector.
Measure voltage of CKPS signal circuit between CKPS harness connector and chassis ground.
Probe(+) : CKPS harness connector NO2.
Probe(-) : Chassis ground.
Specification: Approximately 5V
Is voltage within specification?
YES
Go to "OPEN CIRCUIT INSPECTION OF SENSOR GROUND"
NO
short circuit to signal circuit between CKPS harness connector and battery power circuit
Repair as necessary and go to "Verification of Vehicle Repair" procedure
1.In case,when CKPS connector is disconnected,the voltage at terminal 2 is 12V.
▶Possible cause : Short circuit between I/P-J/BOX fuse(15A) and CKPS terminal 3.
After disconnecting CKPS,the measurement of terminal 1 resistance is for checking the ground condition.
Turn ignition switch to OFF and disconnect CKPS connector.
Measure resistance or voltage of CKPS ground circuit between CKPS harnece connector and chassis ground.
Probe(+) : CKPS harness connector NO1.
Probe(-) : Chassis ground.
Specification: below 1Ω
Is resistance or voltage within specification?
YES
Go to "Component Inspection"
NO
Poor connecting condition at ground point G15 on body
Repair as necessary and go to "Verification of Vehicle Repair" procedure
