DTC Description

The Passenger Airbag circuit consists of the SRSCM and the Passenger Airbag (PAB). The SRSCM sets above DTC(s) if it detects that the resistance of PAB squib is too high or low.

DTC Detecting Condition

DTC

Condition

Probable cause

B1352

B1353

●

Too high or low resistance between PAB high(+) and PAB low (-)

●

Passenger Airbag (PAB) Malfunction

●

SRSCM Malfunction

●

Open or short circuit on wiring harness

●

Passenger Airbag (PAB) squib

●

SRSCM

Specification

PAB resistance : 1.878 ~ 2.442 Ω

Schematic Diagram
Terminal ＆ Connector Inspection

Refer to the DESCRIPTION in this TROUBLESHOOTING part.

Inspection Procedure
1.

PREPARATION

Refer to the DESCRIPTION in this TROUBLESHOOTING part.

2.

CHECK PAB RESISTANCE

caution

Never attempt to measure the circuit resistance of the airbag module(squib) even if you are using the specified tester.

(1)

Connect the Dummy and the Dummy Adapter on PAB harness connector.

● Refer to "SPECIAL SERVICE TOOL" section in this SERVICE MANUAL for the SST No. of Dummy and Dummy Adapter.

(2)

Measure resistance between the terminal 11 and 12 of SRSCM harness connector(A).

PAB resistance : 1.878 ~ 2.442 Ω

(3)

Is the measured resistance within specification?

▶ Replace the Passenger Airbag(PAB) module.

▶ Check open circuit.

3.

CHECK OPEN CIRCUIT

(1)

Measure resistance between the terminal 1 of PAB harness connector and the terminal 11 of SRSCM harness connector(A).

(2)

Measure resistance between the terminal 2 of PAB harness connector and the terminal 12 of SRSCM harness connector(A).

Specification (resistance) : below 1 Ω

(3)

Is the measured resistance within specification?

▶Check short circuit.

▶Repair or replace the wiring harness between the PAB and the SRSCM.

4.

CHECK SHORT CIRCUIT

(1)

Measure resistance between the terminal 1 and 2 of PAB harness connector.

Specification (resistance) : infinite

(2)

Is the measured resistance within specification?

▶ Go to next step.

▶ Repair or replace the wiring harness between the PAB and the SRSCM.

5.

CLEAR THE DTC AND CHECK THE VEHICLE AGAIN

Refer to the DESCRIPTION in this TROUBLESHOOTING part.

Яндекс.Метрика