3.
ARE THE WIRES O.K ? & ARE THE CONNECTIONS O.K ?
YES
a.
Go to "Signal Circuit Inspection" procedure
NO
a.
Repair as necessary and go to " Verification of Vehicle Repair " procedure
Check for damaged harness and terminals including rubber seals :
-. contact resistance, oxidation, corrosion, bent or broken terminals
-. harness connector connection, loose wires etc.
Check for poor connection between ECM and component :
-. backed out terminal, improper mating, broken locks and poor terminal to wire connection
ARE THE WIRES O.K ? & ARE THE CONNECTIONS O.K ?
YES
Go to "Signal Circuit Inspection" procedure
NO
Repair as necessary and go to " Verification of Vehicle Repair " procedure
DTCs listed below are stored in the scan tool
P1321/P1322
Check items with the scan tool and the multimeter
① Wiring harness inspection
② Battery voltage from the fuse 19 (10A) to the glow indicator lamp
Specification
Resitance : below 1 Ω for open in the wire
Resitance : infinite for short to ground in the wire
Voltage : below 0.5V for short to power in the wire
Battery voltage : Approx. 12V
Refer to the component and full circuit for connector configrations details
Turn the ignition switch ON and watch the glow indicator lamp.
Glow indicator lamp lights briefly for self test when the ignition switch is turned ON
DOES THE GLOW LAMP COME ON AND STAY ON BRIEFLY AFTER TRUNING THE IGNITION SWITCH ON ?
YES
Intermittent failure, system is O.K at this time.
Check for poor connections or loose wire between the dash fuse box and the ECM
Go to "Verification of Vehicle Repair" procedure
NO
Repair short in the wire between the fuse No.19 (10A) and the ECM terminal 30/C230-2
Replace the fuse if the fuse is broken.
Check for a blown glow indicator bulb and replace the bulb if the bulb is broken
Go to step 3
Connect the ECM terminal 30/C230-2 to the body ground with a jumper wire directly.
IS THE GLOW LAMP LIGHT ON ?
YES
Go to step 5
NO
Recheck short in the wire between the fuse No.7 (10A) and the ECM terminal 30/C230-2.
Recheck the fuse No.19 (10A) in the dash fuse box and replace the fuse if the fuse is broken.
Recheck for a blown glow indicator bulb and replace the bulb if the bulb is broken.
Go to step 5
Start the engine and turn the ignition switch OFF in no time
Turn the ignition switch ON
Check the ground condition with the LED lamp at the ECM terminal 30/C230-2 directly.
IS THE LED (GREEN) LAMP ON ?
YES
Go to "Verification of Vehicle Repair" procedure
NO
Replace a known - good ECM and recheck. If the LED (green) lamp is ON, replace the ECM.
YES
Go to "Verification of Vehicle Repair" procedure
Turn the ignition switch ON and watch the glow indicator lamp
Glow indicator lamp lights briefly for self test when the ignition switch is turned ON
DOES THE GLOW LAMP COME ON AND STAY ON BRIEFLY AFTER TRUNING THE IGNITION SWITCH ON ?
YES
Intermittent failure, system is O.K at this time.
Check for poor connections or loose wire between the dash fuse box and the ECM terminal.
Go to "Verification of Vehicle Repair" procedure
NO
Repair open or short in the wire between the fuse No.7 (10A) and the ECM terminal 30/C230-2
Replace the fuse if the fuse is broken.
Check for a blown glow indicator bulb and replace the bulb if the bulb is broken
Go to step 3
Connect the ECM terminal 30/C230-2 to the body ground with a jumper wire directly.
IS THE GLOW LAMP LIGHT ON ?
YES
Go to step 5
NO
Recheck open or short in the wire between the fuse No.7 (10A) and the ECM terminal 30/C230-2.
Recheck the fuse No.7 (10A) in the dash fuse box and replace the fuse if the fuse is broken.
Recheck for a blown glow indicator bulb and replace the bulb if the bulb is broken.
Go to step 5
Start the engine and turn the ignition switch OFF in no time
Turn the ignition switch ON
Check the ground condition with the LED lamp at the ECM terminal 30/C230-2 directly.
IS THE LED (GREEN) LAMP ON ?
YES
Go to "Verification of Vehicle Repair" procedure
NO
Replace a known - good ECM and recheck. If the LED (green) lamp is ON, replace the ECM.
YES
Go to "Verification of Vehicle Repair" procedure
