DTC 94
DTC 94 - Side impact sensor (RH) power supply circuit systemDTC 94 - Side Impact Sensor (RH) Power Supply:
Connector - C-74, D-02:
CIRCUIT OPERATION
The SRS-ECU judges how severe a collision is by detecting signals from the side impact sensor and the analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the safing G-sensor is on, the SRS air bag will inflate.
DTC SET CONDITIONS
This diagnosis code is output if the power supply voltage of the side impact sensor (RH) drops below the rated value for a continuous period of five seconds or more. However, diagnostic trouble code number 94 will be automatically cleared and the SRS warning light will switch off if the condition returns to normal.
TROUBLESHOOTING HINTS
- Damaged wiring harnesses or connectors
- Malfunction of the side air bag module (RH) (squib)
- Malfunction of the SRS-ECU
DIAGNOSIS
Required Special Tools:
MB991502: Scan Tool (MUT-II)
MB991223 (MB991222): Harness set (Probe)
STEP 1. Check the side impact sensor (RH) line at the SRS-ECU connector C-74.
1. Disconnect the side impact sensor (RH) connector D-02 and measure at the harness side connector.
2. Measure the voltage between terminal 1 and the ground. Voltage should be 9 volts or more.
3. Check the continuity between terminal 3 and the ground. Should be less than 2 ohms.
If the voltage does not meet the specifications or an open circuit exists, replace the side impact sensor (LH). Then go to Step 3.
If the voltage meets the specifications and the resistance is less than 2 ohms, go to Step 2.
STEP 2. Check the harness wires between SRS-ECU connector C-74 and side impact sensor (RH) connector D-02.
If harness wires are in good condition, go to Step 3. If any harness wires between SRS-ECU connector C-74 and side impact sensor (RH) connector D-02 are damaged, repair them or install the sensor cable. Then go to Step 3.
Connector - D-02:
STEP 3. Check for any diagnostic trouble codes.
Confirm that diagnostic trouble code 94 is not output.