Signal Too High. Intermittent Fault

Signal too high. Intermittent fault

Checking components and wiring












- Ignition off
- Disconnect the battery negative lead
- Disconnect the SRS control module.
- Ignition on
- Connect the battery negative lead.

Warning! There must not be anyone inside the passenger compartment when the battery is connected.

Warning! Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected, non-deployed, pyrotechnical airbag. This could deploy the airbag!

Note! Do not touch the terminal pins in the SRS control module. There is a risk of static discharge which could damage the control module.

Check the connectors for:
- the SRS control module
- the inflatable curtain (on the D-post)
- the inflatable curtain (located on the floor in front of the C-post).
check for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults. Check for loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Measure the voltage between SRS control module:
- terminal #47 (#22) and chassis ground
- terminal #48 (#23) and chassis ground.
Check between the igniter connector:
- terminal #3 and chassis ground
- terminal #1 and chassis ground.
for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
There is a short-circuit to supply voltage if the voltage is greater than 0 V.
Remedy as necessary.

Other information:
- To access or replace the control module, see SRS control module Removal and Replacement
- To access and replace the inflatable curtain for the S40, see IC (inflatable curtain) IC (Inflatable Curtain)
- To access and replace the inflatable curtain for the V40, see IC (inflatable curtain) IC (Inflatable Curtain)
- To connect the breakout box, see Connecting the breakout box Connecting The Breakout Box
- For information about signals, see Signal specification Signal Description. Supplementary Restraint System (SRS).









Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

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Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Checking components and wiring

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