Restraints - A-Pillar Terminals (Low Spring Tension)
Title C70 too low contact force in A-pillar connector female contactsRef No US14470.6.0 en-GB
Issuer -
Partner 3 US 7510 Volvo Cars North America
Func Group 3740 Func Desc cable systems, central
Status Released
Status Date 2007-04-17
Issue Date 2007-04-17
Reference Q1-027532
Attachment
Vehicle Type
CSC
DTC
Text
DESCRIPTION:
* TJ updated (to version 6) to indicate end chassis number in Vehicle Type.
In C70 cars within the given chassis number range, some of the female terminals in the A-pillar connector with twisted pair wires connected may have too low pin tension.
Terminals in the following connector positions are involved:
Position 1 and 2 : Low Speed CAN connection
Position 8 and 9 : Door Mounted Inflatable Curtain connection
Position 25 and 26 : Door Pressure Sensor connection
This concern was caused in the manufacturing process at our harness supplier where the tool used to twist the wire pairs in some cases caused damage to the female terminals.
PRODUCT MODIFICATION:
Our harness supplier has modified the twisting tool to avoid damage to the female terminals.
As a result of this modification, cars from chassis number 015474 should not have too low pin tension in the female terminals as root cause for contact problems.
MATERIAL RETURN:
Yes please send replaced terminals for analysis.
TECHNICAL REPORT:
Yes please report in detail the customer symptom(s) and found DTC(s).
SERVICE:
If any customer symptom is present (e.g. DTCs as listed above) that may be caused by a poor contact in one of the involved connections, check the pin tension of the female terminals in positions 1, 2, 8, 9, 25 and 26 of both A-pillar connectors as per CHECK METHOD below.
If the pin tension is found to be too, low replace the involved female terminals.
If other contact problems are present, replace both female and male terminals.
Send the replaced terminals to TMA for detailed analysis.
REQUIRED TOOL:
For the pin tension check, use male service terminal P/N 30765118 as test tool. This is the male terminal (gold plated) used in the male A-pillar connector.
Note:
P/N 30765118 = 5 terminals with crimped wire.
INVOLVED PARTS
CHECK METHOD:
- Disconnect the A-pillar connector.
- Use male service terminal P/N 30765118 as a test tool. Insert and remove this test tool in each of the involved female terminals (position 1, 2, 8, 9, 25 and 26) and feel while removing the tool if the pin tension is OK. (Compare removing force with other terminals.)
- If low pin tension is detected in one or more of the female terminals the affected terminal must be replaced with a female service terminal.
MY2006 cars (chassis number 009999 or lower):
- Use tin plated terminal P/N 30656698 for each of the terminals 1, 2, 25 and 26 with too low pin tension.
^ Use gold plated terminal P/N 30772665 for each of the terminals 8 and 9 with too low pin tension.
MY2007 cars (chassis number 010000 or higher):
* Use gold plated terminal P/N 30772665 for each of the terminals 1, 2, 8, 9, 25 and 26 with too low pin tension.
Note:
P/N 30772665 is a kit containing 5 terminals with crimped wires. P/N 30656698 is a kit containing 20 terminals with crimped wires.
NOTES:
1. Perform this check on the A-pillar connector on both sides.
2. Refer to VIDA for repair method to replace the terminals.
3. Gold plated terminals must not be mixed with tin plated terminals. If this is done galvanic corrosion will occur which results in poor connection.
4. Scrap the male service terminal after using it on one car to check all contacts. If it is used too often it may damage the female terminals while testing.
VSTG OPERATION NUMBER:
99448-2 Check female contacts in both A-pillar connectors
99446-3 Replace Female contacts in A-pillar connector