KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2275 ENGINE START REQUEST CONTROL CIRCUIT
DTC detecting condition:
• When malfunction is detected in engine start permission signal output circuit in the keyless access CM.
• When malfunction is detected in external engine start permission signal circuit.
Trouble symptom:
Engine will not start.
CAUTION:
For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Wiring diagram:
Push button start system Push Button Start System > WIRING DIAGRAM">
STEP | CHECK | YES | NO |
1.CHECK LAN SYSTEM.
Inspect LAN system. Basic Diagnostic Procedure > PROCEDURE">
Is LAN system normal?
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2275 ENGINE START REQUEST CONTROL CIRCUIT">Go to Step 2.
Perform the inspection according to the diagnosis for LAN system.
2.CHECK FUSE.
Check the fuse. Relay and Fuse">
Is the fuse OK?
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2275 ENGINE START REQUEST CONTROL CIRCUIT">Go to Step 3.
Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.
3.CHECK HARNESS.
1) Disconnect the keyless access CM connector and ECM connector.
2) Using a tester, measure the resistance between the keyless access CM connector and ECM.
Connector & terminal
(B572) No. 7 — (B137) No. 17:
Is the resistance less than 1 ??
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2275 ENGINE START REQUEST CONTROL CIRCUIT">Go to Step 4.
Repair or replace the open circuit of harness.
4.CHECK HARNESS.
Using a tester, measure the resistance between the keyless access CM connector and chassis ground.
Connector & terminal
(B572) No. 11 — Chassis ground:
Is the resistance less than 1 ??
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2275 ENGINE START REQUEST CONTROL CIRCUIT">Go to Step 5.
Repair or replace the open circuit of harness.
5.CHECK HARNESS.
Using a tester, measure the resistance between the keyless access CM connector and chassis ground.
Connector & terminal
(B572) No. 7 — Chassis ground:
Is the resistance 10 k? or more?
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2275 ENGINE START REQUEST CONTROL CIRCUIT">Go to Step 6.
Repair or replace the short circuit of the harness.
6.CHECK KEYLESS ACCESS CM.
1) Connect the keyless access CM connector and ECM connector.
2) Using a tester, measure the voltage between the terminals of keyless access CM connector.
Connector & terminal
(B572) No. 7 (+) — (B572) No. 11 (−):
Is the voltage 2 V or less > 9 V or more when the push button ignition switch is turned on while depressing the brake pedal with the shift position in P or N?
Perform inspection according to the diagnosis of engine. Basic Diagnostic Procedure > PROCEDURE">
Replace the keyless access CM. Keyless Access CM">
Inspection
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